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 contact, Contact, Contact late afternoon, section strength TAOR patrol, Long Binh Operation Federal 14th March 1969, 7 platoon, C Coy 4 RAR/NZ (ANZAC), under heavy fire from both sides of the road the riflemen engage the enemy as the M60 moves forwardphotograph, long binh, c coy, 4rar nz, gibbons collection catalogue, m60 machine gun, 7 platoon, taor patrol, operation federal, m60, 4 rar/nz (anzac), riflemen, denis gibbons

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 Contact, Contact, Contact, late afternoon, section strength TAOR Patrol, Long Binh Operation Federal 14th March 1969, 7 Platoon, C Coy 4 RAR/NZ (ANZAC). A captured NVA/VietCong sapper is moved to be picked up by helicopter and taken to Fire Base Bettyphotograph, long binh, operation federal, 7 platoon, c coy, 4rar nz, gibbons collection catalogue, fire base betty, taor patrol, nva/vc, anzac, captured nva viet cong sapper, denis gibbons

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 2 Platoon, A Coy 1 RAR commanded by Maj Kim Patterson, Nedlands, W.A.advances with Centurian tanks of 1 Troop, C Squadron, 1st Armoured Regiment, commanded by Lt Brian Sullivan during Operation Goodwoodphotograph, 2 platoon, centurion tank, operation goodwood, 1st armoured regiment, gibbons collection catalogue, digger, a coy, 1 rar, maj kim patterson, 1 troop, lt brian sullivan, c squadron, denis gibbons

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 whitie photograph of Engineers and Diggers from the 1st Australian Civil Affairs Unit make repairs and refurbish the dispensary and hospital at Hoa Long. The diggers were assisted by a great many of the village people to provide a much needed and upgraded medical facility.photograph, 1st australian civil affairs unit, hospitals - vietnam, gibbons collection catalogue, hoa long, diggers, engineers, local villagers, denis gibbons

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 Contact, Contact, Contact late afternoon, section strength TAOR Patrol, Long Binh, Operation Federal 14th March 1969, 7 platoon, C Coy 4 RAR/NZ (ANZAC). The section Diggers cover each other as they pull back to meet the rest of 7 Platoonphotograph, long binh, operation federal, c coy, 4rar nz, gibbons collection catalogue, taor patrol, 7 platoon, diggers, anzac, denis gibbons

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 American 6th Fleet helicopter delivers crew members by winch from HMAS Hobart to their ship after being confined to a shore hospital.photograph, hmas hobart, gibbons collection catalogue, american aircraft and helicopters, american 6th fleet, denis gibbons

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 NZ infantry soldier Pte Growden a member of 4 RAR/NZ sets up a claymore mine ambush.photograph, pte growden, 4rar nz, claymore mine, gibbons collection catalogue, denis gibbons

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 7 RAR Fire Support Base, housing the Battalions direct artillery support, 106 Battery. The Fire support Base also contained the Battalions Mortar Platoon, while the guns and mortars were "in the open", the Battalion elements were in the "scrub. (Circa May 1970)photograph, 7 rar, 106 field battery, gibbons collection catalogue, fire support base, mortar platoon, artillery support, denis gibbons

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 7 RAR diggers man an observation post at the 'Horseshoe Feature' lookout over the known infiltration route used by NVA/VC out of War Zone D to the sea.photograph, 7 rar, war zone d, gibbons collection catalogue, horseshoe feature, diggers, nva/vc, denis gibbons

This item was collected because it has been signed by Sir Peter Cosgrove MC, Patron on the National Vietnam Veterans Museum. He served as a Lieutenant in Vietnam :1 Australian Reinforcement Unit 02 Aug 1969 -19 Aug 1969, 9th Battalion, The Royal Australian Regiment 20 Aug 1969 -28 Sep 1969,Headquarters, 1st Australian Task Force 29 Sep 1969 - 30 Jul 1970. It was donated by National Serviceman R V Williams, a private who served under Lieutenant Cosgrove.Bottle green peaked cap with a tan brim. Embroidered. Signed in black felt pen by Peter Cosgrove.Vietnam/ Map of Australia/Vietnam 4 color bar crossing the map/ Vietnam Veterans Australia/ signature of Peter Cosgrove.souvenir, vietnam veterans cap, sir peter cosgrove signature, cosgrove, williams, r v williams

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 Contact, Contact, Contacts, late afternoon strength section, TAOR patrol, Long Binh Operation Federal 14th March 1969, 7 Platoon, C Company 4 RAR/NZ (ANZAC) ,back as 7 Platoon area a digger burns the uniforms and packs captured during the firefightphotograph, long binh, operation federal, 7 platoon, c coy, 4rar nz, taor patrol, gibbons collection catalogue, anzac, digger, denis gibbons

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 Contact, Contact, Contact, late afternoon section strength TAOR patrol, Long Binh, Operation Federal, 14th March 1969, 7 Platoon, C Company 4 RAR/NZ (ANZAC) a captured NVA/VietCong sapper prior is guarded by two diggers prior to being moved out into captivityphotograph, long binh, operation federal, 7 platoon, c coy, 4rar nz, gibbons collection catalogue, nva viet cong, diggers, toar patrol, anzac, captured nva viet cong sapper, denis gibbons

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 Seven Platoon, Charlie Company, 4th Battalion/New Sealand (ANZAC), Royal Australian Regiment, number two on the M60 machine gun, patrols through close country on Operation Federal. the bullet belts for the m60 are twined about his body to distribute the weight.photograph, long binh, operation federal, 7 platoon, c coy, 4rar nz, gibbons collection catalogue, m60 machine gun, charlie company, anzac, royal australian regiment, denis gibbons

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 two diggers with the 9th Battalion, Royal Australian Regiment, an M60 machine Gun on the Company, perimeter defence, in a night location, North East of the Australian Task Force Base, brew up a quick cup of coffee, only minutes before they have to 'stand to'photograph., 9 rar, gibbons collection catalogue, 9th battalion, m60 machine gun, australian task force, diggers, denis gibbons

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 elements of A Company, 7 RAR under command of Maj Chris Thompson move out on Operation Finschafen 13/03/1970. Maj Thompson had previously spent fourteen years with Gurka Battalions in Malaya and Hong Kongphotograph, maj chris thompson, operation finschafen, 7 rar, gibbons collection catalogue, a company, denis gibbons

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 takes a quick nap as a halt is called while patrolling in the close country of the 'Dark Green' or sometimes called the 'Long Green' of the heavy, thick tropical rainforest. The relief of getting a heavy wet pack of the back was a blessing to the infantryman.photograph, digger, gibbons collection catalogue, dark green, long green, infantry soldiers, denis gibbons

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. A US 105mm towed Howitzer being readied to be returned to the 1st Australian Task Force Base at Nui Dat, Phuoc Tuy Province, South Vietnam following completion of operations at a Fire Support Base.photograph, artillery, 105mm howitzer, 1st atf base, phuoc tuy province, nui dat, fire support base, gibbons collection catalogue, denis gibbons

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 Engineers, from 17 Construction Squadron, use a front end loader to deliver rock into a mobile crusher used to prepare fine rock material for all types of foundation work, used in construction projects throughout Phuoc Tuy Province, South Vietnam.photograph, engineers, 17 const sqn, phuoc tuy province, gibbons collection catalogue, photographer, vietnam war, denis gibbons, front end loader, machinery

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 of 1st Field Regiment, Royal Australian Artillery at Nui Dat, Phuoc Tuy Province, South Vietnam pose for a formal photograph by their 105mm Howitzer. (Circa March 1967)photograph, 105mm howitzer, 1st australian field regiment, raa, 1st atf base, nui dat, phuoc tuy province, gibbons collection catalogue, denis gibbons, photographer, vietnam war, 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 Gunners of 1st Field Regiment, RAA, at the 1 ATF Base, Nui Dat, Phuoc tuy Province, Sth Vietnam, breaking open boxes of 105mm artillery shells and prepare and repack them for a parachute drop to 101 Battery at Fire Support Base Discovery. (Circa November 1969)photograph, gunner, 1st australian field regiment, raa, 1st atf base, nui dat, phuoc tuy province, 105mm artillery, 101 battery, fire support base discovery, gibbons collection catalogue, denis gibbons, photographer, vietnam war, 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 Gunners of 1st Field Regiment, RAA, at the 1ATF Base, Nui Dat, Phuoc Tuy Province, Sth Vietnam, breaking open boxes of 105mm artillery shells and repack them for a parachute drop to 101 Battery at Fire Support Base Discovery. (Circa November 1969)photograph, 1st australian field regiment, raa, 1st atf base, nui dat, phuoc tuy province, 105mm artillery, 101 battery, fire support base discovery, gibbons collection catalogue, gunner, 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 Gunner Doug Blenkiron of Murrayburg, SA, tossing cases of US Army C-Rations to another Gunner (wearing goggles, 2nd in line) at 1 ATF Base, Nui Dat, the re-supply is being loaded on an RAAF Huey 'slick' helicopter. (Circa march 1968).photograph, c rations, gnr doug blenkiron, 1st atf base, nui dat, huey helicopter, raaf, gibbons collection catalogue, gunner, 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 coloured photograph of a 105mm gun, covered against dust, sits silent in its bay at a Fire support Base at the base of the Nui Thai Vai Mountains, Phuoc Tuy Province, South Vietnam. The Fire Base was supporting 1 ATF Units sweeping through the caves of the mountains. (Circa October 1969)photograph, 105mm howitzer, fire support base, nui thai vai mountains, phuoc tuy province, 1 atf, gibbons collection catalogue, denis gibbons, 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 a 105mm gun, covered against dust, sits silent in its bay at a Fire Support Base, at the base of the Nui Thai Vai Mountains, Phuoc Tuy Province, South Vietnam. The Fire Support Base was supporting 1st ATF Units sweeping through the caves of the mountains. (Circa October 1969)photograph, 105mm howitzer, fire support base, nui thai vai mountains, phuoc tuy province, 1st atf base, gibbons collection catalogue, denis gibbons

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 quiet time, in a gun detachment area at an Australian Fire Support Base, in the sand dunes, on the coast, South East of the 1st Australian Task Force Base at Nui Dat, Phuoc Tuy Province, South Vietnam. The Battery was supporting Infantry in the area (circa June 1970).photograph, fire support base, 1st atf base, nui dat, phuoc tuy province, infantry, gibbons collection catalogue, photographer, vietnam war, denis gibbons, 105mm howitzer, nui thai vai mountains

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 Gunner at the 1st Australian Task Force Base, Nui Dat, Phuoc Tuy Province, sorts 105mm shell casings returned from Fire Support Base Discovery. The casings were then re-packed into their relevant types and returned to Australia, as scrap metal. (Circa November 1969)photograph, 105mm cartridge, gunner, 1st atf base, nui dat, phuoc tuy province, fire support base discovery, gibbons collection catalogue, gunner, photographer, vietnam war, denis gibbons, 1st australian field regiment, fsb discovery, 101 battery

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 of 1st Field Regiment, RAA, at the 1ATF Base, Nui Dat, Phuoc Tuy Province, Sth Vietnam, break open boxes of 105mm artillery shells and prepare and repack them for a parachute drop to 101 Battery at Fire Support Base Discovery. (Circa November 1969)photograph, 1st australian field regiment, raa, 1st atf base, nui dat, phuoc tuy province, 101 battery, 105mm artillery, fire support base discovery, gibbons collection catalogue, gunner, photographer, vietnam war, denis gibbons, parachute drop

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 of the 1st Field Regiment, RAA, at the 1ATF Base,Nui Dat,Phuoc Tuy Province, Sth Vietnam, break open boxes of 105mm artillery shells and prepare and repack them for a parachute drop to 101 Battery at Fire Support Base Discovery. (Circa November 1969)photograph, 1st australian field regiment, raa, 1st atf base, nui dat, phuoc tuy province, fire support base discovery, gibbons collection catalogue, gunner, photographer, vietnam war, denis gibbons

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 oblique aerial view of the Australian Fire Support Base Harrison, Operation Pinnaroo. The FSB provided a battalions direct artillery and mortar support, to the infantry, on operations away from 1st ATF at Nui Dat, Phuoc Tuy Province. (Circa March 1968)photograph, fire support base harrison, operation pinaroo, 1st atf base, nui dat, phuoc tuy province, denis gibbons, gibbons collection, fsb harrison

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 Gunner at the 1st Australian Task Force Base, Nui Dat, Phuoc Tuy Province, throws a 105mm shell casing, returned from Fire Support Base Discovery into its correct pile. The casings were then packed into their relevant types and returned to Australia. (Circa November 1969)photograph, 1st atf base, nui dat, phuoc tuy province, 105mm cartridge, fire support base discovery, gunner, gibbons collection catalogue, photographer, vietnam war, denis gibbons, 105mm howitzer, 1st australian field regiment, raa, fsb discovery