The initial partnership in a quartz crushing plant between Henry Koch, Simon Albert and Charles Wallin was dissolved in 1860 with Koch becoming the sole owner. In 1866 the crushing plant consisted of a 50 hp engine and 48 stamping heads capable of crushing 600 tons of quartz per week. By 1902 there were 72 stamps and this was by far the largest crushing plant in the area, serving many quartz mines. Henry Koch (1800-1889) was a German sailor who signed off when his ship reached Melbourne in 1851. Having heard of the gold discovery he proceeded to Bendigo where he was initially employed in puddling in the Myers Flat area. He was soon employed and then made partner in a quartz crushing plant that he became sole owner of in 1860. He was also landlord at the British and American Hotel and the Silver Mines Hotel. HE also started the Perseverance United gold claim. He married Anna Maria Theresia Heinz in 1857. In 1872 he sold the crushing plant for 75,000 pounds and took his family back to Germany. He resumed his trade as a ship builder although he maintained many Bendigo mining interests.Envelope containing a negative of Koch's Pioneer Crushing Battery. Image shows large building, chimney on left. Negative not scanned.bendigo, mining, koch's pioneer crushing battery

Items in the collection relating to ARTHUR GEORGE HOLLEY no 13556 RAN Refer cat no 2134 for his service record. The photographs are from his personal album, and are mainly official photographs widely available among the services. The photographs are from Australian , British and American sources. This set illustrates Holley's service on HMAS Sydney in the mid 1920s and HMAS Australia in the early 1930s They are a mixture of official and personal photographs and capture the events he and his HMAS Australia crewmates would have experienced and witnessed. Photographs taken around the time of Holley's service on HMAS Australia in the early 1930sinterwar period, arthur george holley, hmas australia, hmas sydney

Items in the collection relating to ARTHUR GEORGE HOLLEY no 13556 RAN Refer cat no 2134 for his service record. The photographs are from his personal album, and are mainly official photographs widely available among the services. The photographs are from Australian , British and American sources. This set illustrates Holley's service on HMAS Canberra in the period 1928-1930 Whilst not taken personally, they do capture the events he and his Canberra crewmates would have experienced and witnessed.Each desription is preceeded by an approximate date e.g.1940 06 is June 1940. 1. 7963-1 1933 Holley A nd B turrets HMAS Canberra Portsmouth England 2. 7963-2 1934 Spring cruise HMAS Squadron Australia Canberra and destroyers 3. 7963-3 1941 Holley hobart 4. 7963-4 Holley Canberra firing 8inch guns 5. 7963-5 Holley Canberra salvo 8inch guns 6. 7963-6 Holley Canberra 7. 7963-7 Holley HMAS Canberra in heavy seas 8. 7963-8 Canberra Welcome home 9. 7963-9 Holley ship with biplanes flypast from 015 10. 7963-10 holley Swains reef Queensland 1930s 11. 7963-11 Holley with 2 shipmates from HMAS Canberrahmas canberra, interwar period, arthur george holley

This style of mask was developed in Britain and began to appear from the 1930s, though original models may have been produced in the 1920s. Various patents for this style of mask were still being filed in the 1960s, so they were used for a considerable period of time. It is possible that the original filter pads for these masks contained asbestos, as they supposedly utilised 'fire proof' materials. Asbestos was already in use in other British respirator masks at this time. Original cataloguing information believed this item to be an eye shield, but further research has indicated that this is not the case.Mask consists of a metal plate designed to cover the lower half of the face. There is a recess along the top edge of the plate designed for the nose to sit in. There is a large oblong opening with rounded corners at the centre of the mask, which is a mouth opening to assist speech and is the main air intake. There are five round holes on either side of the mask, likely included to decrease the mask's breathing resistance for the wearer. Rounded slots at each edge of the mask are threaded through with an elastic strap, used for attaching the mask to the face. This mask would have been used with a filtering pad attached, but the pad is missing.