Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograph of the American aircraft carrier USS Enterprise, on station with the U.S. 7th Fleet in the Tonkin Gulf, North Vietnam. Aircraft from the carrier maintained round the clock bombing raids on North Vietnam.photograph, uss enterprise, tonkin gulf, aircraft carrier, gibbons collection catalogue, denis gibbons, photographer, vietnam war, u.s. 7th fleet, bombing raids, north vietnam

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograph of the Australian Army Landing Craft the Vernon Sturdie or 'The Ace of Spades' as it makes its way up the Mekong River towards Long Binh to deliver American tanks to the Vietnamese Army. The Ace of Spades worked extensively in the Mekong Delta area.photograph, landing craft vernon sturdie, the ace of spades, mekong delta, long binh, gibbons collection catalogue, denis gibbons, photographer, vietnam war, vietnamese army

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograpf of two of the three Dunne brothers in service, one in the RAN and one in the Army meet on the deck of the Vung Tau Ferry HMAS Sydneygibbons collection catalogue, photographer, vietnam war, denis gibbons, dunne brothers, royal australian navy, australian army, vung tau ferry, hmas sydney

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection. A black and white photograph of a digger at 103 Battery Phuoc Tuy Province, South Vietnam, July 1966. He fires a 105mm Italian Pack Howitzer during a fire mission from the 1st Australian Task Force Base, Nui Dat, Phuoc Tuy Province, South Vietnam.photograph, artillery, 103 battery, phuoc tuy province, 105mm howitzer, 1st atf base, gibbons collection catalogue, denis gibbons, photographer, vietnam war, digger

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection. A black and white photograph of Phuoc Tuy Province, South Vietnam, July 1966. Diggers at 103 Battery load a 105mm Italian Pack Howitzer during a fire mission from the 1st Australian Task Force Base, Nui Dat, Phuoc Tuy Province, South Vietnam.photograph, artillery, phuoc tuy province, nui dat, 103 battery, 105mm howitzer, 1st atf base, gibbons collection catalogue, denis gibbons, photographer, vietnam war, diggers

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection. A black and white photograph of a Corporal teacher/linguist with the 1st Australian Civil Affairs Unit, conducting a class in English for Vietnamese girls who are hoping to get work at Australian and American Military Bases. The classes were conducted at the Phuoc Tuy Province capital of Baria.photograph, 1st australian civil affairs unit, 1st atf base, nui dat, phuoc tuy province, baria, vietnamese linguist, denis gibbons, photographer, vietnam war, vietnamese girls, american military

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograph of the Australian Army Landing Craft 'Vernon Sturdie' moving into the congested Saigon-Long Binh dock to unload American tanks and other vital war equipment for the South Vietnamese Army. The docks area was constantly cluttered with shipping unloading war materials.photograph, australialanding craft vernon sturdie, saigon, long binh, south vietnam army, gibbons collection catalogue, denis gibbons, photographer, vietnam war

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograph of an Indonesian Naval training ship, cutting across the bow of the Vung Tau Ferry HMAS Sydney as she moves through the Sunda Strait on the way to taking 9th Battalion to Vietnam. The sailing vessel repeatedly cut back and forth across the Sydney's bow.photograph, hmas sydney, vung tau ferry, 9th battalion, royal australian regiment, sundra strait, gibbons collection catalogue, denis gibbons, photographer, vietnam war, indonesian naval training ship

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograph of the fully laden Vung Tau Ferry" HMAS Sydney containing 9RAR vehicles and equipment, making way towards Vung Tau, South Vietnam for a battalion change over and to deliver much needed war supplies to the Australian Force, Vietnam.photograph, vung tau ferry, hmas sydeny, 9 rar, vung tau, australian force vietnam, gibbons collection catalogue, denis gibbons, photographer, vietnam war

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograph of Private G.L. Condon, 7 Platoon, Charlie Coy 4th Battalion/New Zealand (ANZAC) stopping for a short rest while patrolling in Bien Hoa Province on 'Operation Federal'. Pte Condon is carrying an Armalite rifle and an M79 grenade launcher (June 1968-May 1969).photograph, pte g l condon, 7 platoon, c coy, 4th nz battalion, operation federal, bien hoa province, armalite rifle, m72 rocket launcher, gibbons collection catalogue, denis gibbons, photographer, vietnam war

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograph of late afternon, 14th March 1969. Section strength TAOR patrol, Long Binh 'Operation Federal' 7 Platoon, C Company 4 RAR/NZ (ANZAC) - the M60 Gunner moves to the fork in the road to give covering fire to the section riflemen.photograph, 7 platoon, c coy, operation federal, taor patrol, long binh, m60 machine gun, gibbons collection catalogue, denis gibbons, photographer, vietnam war, section strength, 4 rar/nz (anzac), riflemen

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograph of Diggers from 11 Platoon D Company, 6 RAR, on Operation Portsea south east of the Australian Task Force Base at Nui Dat. Men run from the Dustoff helicopter as it starts its take off with their wounded mate, Private Ken Mathieson, for CASAVAC to hospital.photograph, 11 platoon, 6 rar, operation portsea, 1 atf base, dustoff, pte ken mathieson, casavac, denis gibbons, photographer, vietnam war, diggers, nui dat

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograph of Gunners, John McDonald (L) of Blackhall, Qld and Doug Blenkiron of Murrayburg, SA at 1 ATF Base Nui Dat. Both crouch down and look away to lessen the affect of the rotor wash of the incoming RAAF re-supply Huey 'slick' helicopter (circa March 1968).photograph, 1 atf base, nui dat, huey helicopter, john mcdonald, doug blenkiron, denis gibbons, photographer, vietnam war, raaf, gunners

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograph of a Digger from 11 Platoon, D Company 6 RAR/NZ (ANZAC) directing a RAAF Huey 'slick' helicopter into land to collect the captured weapons held by one of their number and taken from the dead and wounded VietCong during an ambush at Bien Hoa, South Vietnam.photograph, 11 platoon, d coy, 6 rar/nz, operation lavarack, huey helicopter, viet cong, bien hoa, gibbons collection catalogue, denis gibbons, photographer, vietnam war, digger, 6 rar/nz (anzac), raaf

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black a white photograph of Diggers from A Company 8 RAR steady one of their wounded mates as he is winched out of the jungle for transport to 1st Australian Field Hospital, Vung Tau following heavy contact in the Hat Dich area north west of the Australian Task Force Base at Nui Dat.photograph, a coy, 8 rar, 1st australian field hospital, vung tau, hat dich, 1st australian task force, nui dat, gibbons collection catalogue, denis gibbons, photographer, vietnam war, diggers, wounded soldier

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection. A black and white photograph of assembled Diggers at 1 Australian Task Force Base, Nui Dat, Phuoc Tuy Province, attending an open air multi - denominational church service conducted by Padres, from three religious donimations: Church of England, Catholic and other denominations.photograph, padre, 1 atf base, nui dat, phuoc tuy province, non demoninational chapel, church of england, catholic, gibbons collection catalogue, denis gibbons, photographer, vietnam war, diggers

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection. A black and white photograph of the non-denominational chapel at 1st Australian Task Force Headquarters, Nui Dat, Phuoc Tuy Province, South Vietnam. The bell, located in the tower, was donated by war correspondant Pat Burgess - an Australian War correspondent, simply called "Burgess Bell" by all.photograph, 1st atf base, nui dat, phuoc tuy province, non demoninational chapel, pat burgess - australian war correspondent, burgess bell, gibbons collection catalogue, denis gibbons, photographer, vietnam war

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograph of the congregation of diggers, following lesson being read by the Church of England Padre at the combined service in the non-denominational chapel. The Padre gave outstanding service to all spending as much time in the field as at Base.photograph, pardre, church of england, church service, digger, non demoninational chapel, gibbons collection catalogue, denis gibbons, photographer, vietnam war, padre, diggers

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograph of four denominations of 1st Australian Task Force Padres conducting a combined service at the non-denominational chapel, whilst an Armoured Corps digger is engrossed in the service. All Padres were available to all units, 24 hours a day.photograph, 1st atf base, non demoninational chapel, padre, digger, armoured corps, gibbons collection catalogue, denis gibbons, photographer, vietnam war, diggers

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograph of a Huey Gunship from the 1st Platoon 334th Armed Helicopter with its windscreen sprayed with mud from the explosion after firing two rockets into a VietCong sampan, loaded with explosives and ammunition attempting to enter South Vietnam down the Mekong River from Cambodia. The sampan was blown to pieces with all on board being killed and the force of the explosion pushing the nose of the helicopter upwards. nearly turning the aircraft over. The pilot had to fight the controls to regain a normal flying attitude.photograph, 1st platoon, 334th armed helicopter coy, huey helicopter, the playboys, mekong river, cambodia, gibbons collection catalogue, denis gibbons, photographer, vietnam war, vietcong, sanpan

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograph of a RAAF 'Slick' Huey helicopter at the 1st Australian Task Force Base Nui Dat, preparing to lift out a Special Air Services patrol for insertion into the jungle somewhere in Phuoc Tuy Province. On this occassion, the operation was supported by US Huey 'Cobra' Gunships.photograph, raaf, huey helicopter, 1st atf base, nui dat, special air service regiment (australian army), phuoc tuy province, us huey 'cobra' gunships, gibbons collection catalogue, denis gibbons, photographer, vietnam war

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograph of a Huey helicopter Gunship from the 1st Platoon 'The Playboys' 334th Armed Helicopter, peeling off to attack sampans entering South Vietnam, from Cambodia, down the Mekong River. The gunships hunted in flights of three with the 1st Platoon the first unit in the US Army to get helicopter gunships, followed by Huey 'Cobra' Helicopter gunships.photograph, 1st platoon, 334th armed helicopter coy, cambodia, mekong river, huey 'cobra' helicopter, us gunships, gibbons collection catalogue, denis gibbons, photographer, vietnam war, the playboys, us army

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograph of Lt Kevin Peacock, a fixed and rotary (helicopter) wing pilot with 161 (Indep) Recce Flight, stationed at the 1st Australian Task Force Base, Nui Dat, Phuoc Tuy Province, South Vietnam. Lt Peacock was one of a very few with 'duel' pilot qualifications.photograph, lt kev peacock, 161 recon flt, 1st atf base, nui dat, phuoc tuy province, gibbons collection catalogue, denis gibbons, photographer, vietnam war

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograph of 2Lt Terry Ellis a rotary wing (helicopter) pilot with 161 (Indep) Recce Flight, at 1st Austrralian Task Force Base, Nui Dat, South Vietnam. Striding with purpose out to his aircraft to commence a mission in Phuoc Tuy Province.photograph, 2lt terry ellis, 1st atf base, 161 recon flt, nui dat, phuoc tuy province, gibbons collection catalogue, denis gibbons, photographer, vietnam war

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograph of a medic aboard the American 'Dustoff' Huey helicopter guiding the makeshift stretcher, containing wounded VietCong, being lifted by Pte L Grygierczyk, Maj J.J. Lakey and Pte J Korn following the successful ambush by 11 Plt, D coy 6 RAR/NZ (ANZAC).photograph, huey helicopter, dustoff, viet cong, pte l grygierczyk, maj j lakey, pte j korn, 11 platoon, operation lavarack, gibbons collection catalogue, denis gibbons, photographer, vietnam war, wounded viet cong soldier, d coy, 6 rar/nz (anzac)

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograph of Huey 'slick' Helicopters from 9 Squadron, Royal Australian Air Force, loaded with seven fully equiped infantry soldiers plus the four RAAF crew, heading for a landing zone in Phuoc Tuy Province at the start of another Australian search and destroy mission.photograph, huey helicopter, raaf, 9 squadron, phuoc tuy province, infantry soldiers, gibbons collection catalogue, denis gibbons, photographer, vietnam war, raaf crew, search and destroy mission

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograph of RAAF Huey 'slick' Helicopters transporting Diggers from the 1st Australian Task Force Base, Nui Dat, Phuoc Tuy Province, to their drop zone to commence operations. The machine gun depicted in the forefront of the photograph is a 7.62mm belt-fed weapon.photograph, huey helicopter, raaf, 1 atf, nui dat, phuoc tuy province, m 60 machine gun 7.62, gibbons collection catalogue, denis gibbons, photographer, vietnam war, diggers

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograph of a Huey 'slick' aircraft from the RAAF's 9 Squadron, winching a wounded Digger from 8 RAR during 'Operation North West' of the Australian Task Force. The Huey helicopter in its many forms was the close support aircraft for the troops on operations in Vietnam.photograph, 9 squadron, raaf, 1 atf, nui dat, 8 rar, digger, operation north west, huey helicopter, gibbons collection catalogue, denis gibbons, photographer, vietnam war, wounded soldier

Denis Gibbons (1937 – 2011) Trained with the Australian Army, before travelling to Vietnam in January 1966, Denis stayed with the 1st Australian Task Force in Nui Dat working as a photographer. For almost five years Gibbons toured with nine Australian infantry battalions, posting compelling war images from within many combat zones before being flown out in late November 1970 after sustaining injuries. The images held within the National Vietnam Veterans Museum make up the Gibbons Collection.A black and white photograph of the American 7th Fleet battleship, the USS New Jersey, operating on the Gunline, Tonkin Gulf, North Vietnam during 'Operation Sea Dragon'. This is the aft view.A black and white photograph of the American 7th Fleet battleship, the USS New Jersey, operating on the Gunline, Tonkin Gulf, North Vietnam during 'Operation Sea Dragon'. This is the aft view.photograph, 7th fleet, uss new jersey, operation sea dragon, tonkin gulf, gibbons collection catalogue, denis gibbons, photographer, vietnam war, gunline, north vietnam