Tecalemit, Ltd., of io, Little Portland Street, Oxford Circus, London, W. 1, are showing a very full range of their lubricating devices and steel spring armour. Perhaps the most interesting of these exhibits is the new lubricating pistol which has several advantages, of which perhaps the most important is that it requires only one hand to operate it. It delivers at a pressure which is five times greater than is possible with the standard grease gun, whilst by means of a spare container and an extra nozzle, it is convertible in an instant either into an oil gun or a petrol squirt,