Combustion bomb by the Parr Instrument Company, Moline, Illinois, United States, 1996, marked 599HC2 T136 052996 6195, with firing unit, tripod stand, and one combustion cup. Used at the British Museum, Department of Scientific Research, for carbon-14 dating of organic materials from 1996. Combustion 'bomb', a vessel for measuring the energy of samples, used for carbon dating by the British Museum, 1996 1996
John Deere Model 'BR' agricultural tractor on pneumatic tyres, by the John Deere Co., Moline, U.S.A., Serial No. 330852, 1940. Engine: Twin-cylinder horizontal overhead valve gasoline (petrol)/ kerosene. John Deere tractor, Model BR, 1940. 1940
