K.G. Luke had a foundry in Queen's Parade, Melbourne which made badges and manufactured items for the Armed Forces during the First World War. He bought 40 acres of cherry orchard in Mitcham in 1952 from a Miss Cook, then went to England and attracted finance from Singer Brass Founders. The company became Luke and Singer. The three factories on site were Luke Manufacturing - stainless steel products and hospital equipment, Luke and Singer - a non-ferrous foundry producing components for industry such as nuts and cutlery, and Concentric Engineering - machinery components. Later the manufacture of refrigeration and air conditioning was added at the rear of the complex. A small aerial photograph and 2 A4 photocopies of the K.G.Luke Group of companies in 1959. The factory site is divided into three groups with Whitehorse Road situated at the bottom of the photo and Cook Road Mitcham to the left. Notes at ND6245luke manufacturing, k.g.luke group, luke and singer, concentric engineering, wheatland, vic, manufacturing industry, foundries, engineering industries

21st Construction Squadron is part of the 6th Engineering Regiment based at Amberley and is drawn mainly from Regular Army.White Square steel sign with hole in each corner on front and image of a fighting rooster (red and yellow) over the number 21 in purple. Surrounded by two concentric circles with the identification of the unit also in purple. All wrapped in clear plastic on back a stamp saying who made the steel. Some codes and dates.Front - "Royal Australian Engineers - Construction Squadron". Back - Stamp "Steel made by Bluescope CC38A Z47910. 22 Sep 2022 8..." Twice.sign, royal australian engineers