Used by Ettore Alessandri who came to Australia in 1930's. He had land at Marlo and used this jack to clear the property of trees and stumps in 1940's and 1950's. The Trewhella Monkey jack was invented by the Trewhella brothers to help land clearance in Australia during the 1880's. Two jacks were made a 5 ton and a 10 ton. This item is a 10 ton model having two extension bars. The longer spear is used for larger tree work and the smaller spear for general work and small trees. Both models had two lifting claws at different heights. Th lower claw was useful for roots. The top claw was intended for going under loads and the bottom claw used for rolling timber. In 1929 the cost of the 10 ton model was thirteen pounds ten shillings.This item is an example of the machinery used by the early settlers to clear land. A 10 ton monkey jack. It has two extensions (spears) and two lifting claws. It has a detachable handle. 2033.1 is the main jack. 2033.2 is the handle. 2033.3 is the shorter extension and 2033.4 is the longer extension.On extension - BRITISH STEEL On main section - 10 TON MONKEY JACK PATENTED 1411-50 AUGUST 04 1412-50 AUGUST -05 ?????? JUL -06 12104-20 JUL-08 Trewalla Bros Trentham Vicrural monkey-jack trewhella agriculture machinery

The Ballarat School of Mines was established in 1870 and was a predecessor institution of Federation University. The first president of the Ballarat School of Mines was Redmond Barry.Half leather bound ledger containing handwritten minutes of the Ballarat School of Mines. Includes: * Foundation Class in Pharmacy and Botany (17/04/1979) * Female Telegraphy Students (12/06/1917)ballarat school of mines, henry richards caselli, w.h. barnard, flude, usher, august hoelscher, warrington rogers, james oddie, robert m. sergeant, ferdinand krause, curator, w.p. bechervaise, james flude, school of mines exhibition committee, james bickett, hugh grey & son, ballarat juvenile industrial exhibition, charles shoppee, g.o. preshaw, alfred mica smith, rivet henry bland, r.w. newman, noble wilson, william burbidge, marie barbour, george hall, susan cahir, mary troy, pharmacy, botany, f.f. bailliere, richard viccars, mary usher, f. pinkerton, pyrites works, james campbell, telegraphy, william bailey, judge rogers, ballarat school of mines certificates, william f. west, j. bryant, henry obree, w.h. odgers, edward debois, james darby, redmond barry, pharmacy board, w.h. keast, george perry, f.w. niven, fedinand von mueller, benjamin trewhella, d. miliken, charles strachan, william wilson, r.a.f. murray, e.p. figgis, charles flude, laboratory, john richards, eyres brothers, john armstrong, h.b. de la poer wall, c.f. crouch, william h. keast, frank pintkerton, hugh grey