North Deborah Mine in Eve Street, Bendigo, operated between 1937 and 1954. In that time it produced 128,000 ounces of gold.Newspaper article titled '24 Tons of Winding Gear'. It has a picture of the winding gear being held by two large cranes. There is a low loader behind it. Some men are looking on. The winding gear was moved from the North Deborah Mine to the California Gully Railway Depot. It was purchased by Mr Arthur Holt and could possibly be sold to a mining company in Western Australia. Article from the Bendigo Advertiser dated 16/12/1971. Written under the paper name and date is 'Harkness' Engine (Gt Southern).newspaper, bendigo advertiser, north deborah gold mining co n. l., north deborah gold mining co n. l., 24 tons of winding gear from the north deborah mine, mr arthur holt

The first five pages are photocopies of photos:- 2 of Rae's Crushing Works; Victoria Quartz on Victoria Hill, Ironbark; Looking North from Old Chum Hill to the Victoria Hill; Victoria Hill - from Rae's Open Cut. Introduction covers location of buildings and mines. Mentioned are:- North Old Chum Mine, Ballerstedt's First Open-cut, Quartz Veins (Spurs), rock formations pitching North, Prospecting shafts 1929, Concrete dam, Engine beds of Lansells Big 180 Mine, Lansells Big 180 Shaft, twenty stampers crushing battery, Lansell's Cleopatra Needle type chimney, Victoria Quartz Mine, Victoria Quartz dams, Rae's Open-cut, Quartz once roasted here to an intense heat, Anticlinal Arch New Chum Line, small primitive tunnels, Prospecting tunnels, Floyd's small 5 head crushing battery, Great Central Victoria (Midway) Shaft, Great Central Victoria engine-bed, Ballerstedt's small 24 yard claim, The Humboldt, Adventure ground, The Advance, Luffsman & Sterry's Claim, A round shaft. Small piece of paper with 'Notes on Victoria Hill complete.document, gold, rae's crushing battery, rae's crushing battery, rae's crushing works, victoria quartz mine, from old chum hill, victoria hill from rae's open cut, ironbark, hercules & energetic, midway, wittscheibe, great central victoria, mr & mrs conroy, central nell gwynne, gold mines hotel, john brown knitwear factory, new chum & victoria, rotary club of bendigo south, north old chum, ballerstedt's first open-cut, lansell's big 180 shaft, cleopatra needle type chimney, a roberts & sons, mr e j dunn, h harkness & sons, eureka extd, new chum railway, pearl, inrush of water at victoria quartz, floyd's small 5 head crushing battery, great central victoria (midway), ballertedt's small 24 yard claim, humboldt, humboldt, great central victoria, victoria hill, bendigo & vicinity 1895 p51, j n macartney 1st edition 1871, bendigo goldfield registry 1871, plan of new chum line, mr rae anderson, annals of bendigo obituary 1904, bendigo advertiser, b m l records mines dept, patterson's goldfields of victoria, dickers mining record 23/11/1861, australian mining standard special edition 1/6/1899 p40, bendigo mines ltd, chinese joss house, fortuna, the victoria goldfield 1851 to 1954, the victoria hill 1854 to 1949

The production Mirage1110 aircraft delivery commenced from the major contractor, the GAF, to the RAAF in March 1964. The secondary contractor to the Mirage project, the CAC, realising the need for a fast jet "lead in" training aircraft, and the only such type in the 1960s, being the supersonic T-38 that was originated for the USAF's F-5 aircraft in service, presented their proposed design for a locally designed and manufactured low cost supersonic training aircraft that would meet the flying and weapons training requirements of the RAAF to the powers that be in 1967. The rationale behind the proposal was the technological advances of aircraft such as the Mirage creating a less than satisfactory learning curve for student pilots advancing from piston engined CAC Winjeel basic trainers through to first generation sub-sonic deHavilland jet trainers into the world of high technology "fast jet" fighter aircraft operation. The original design featured a tail plane less fuselage and a double delta wing to be powered by a General Electric – J85 turbojet engine that was later seen to have a fuel consumption that would unduly impinge on the range and endurance of the aircraft and the design, that had advanced to the stage of constructing a full size mockup, was revised to incorporate the Rolls Royce RB172-T-260 turbojet engine. The aircraft would feature two zero zero Martin Baker ejection seats and be capable of carrying a load of 1815 kg on four wing and two fuselage hardpoints, and be capable of a maximum speed of Mach1.5 at altitude and very high subsonic speeds at low level. In the event, the design was not proceeded with and work ceased at the end of 1970 as the RAAF were going to receive the dual seat trainer version of the Mirage, the 111D, from 1973, and the RAAF initial jet trainer requirement advanced from the deHavilland Vampire to the Aermacchi MB326H aircraft built by the CAC under license in 1967. ​The CA-31 mock up survived and was donated to the Museum in mid 1974CAC designed supersonic trainer