“Sentinel” Steam Waggon Catalogue 1912, Anon., Alley and MacLellan Ltd, .Booklet, 8.5”x 6.0”, 96pp. (note, for reasons of economy in scanning and downloading, certain blank pages have been omitted and the format slightly altered in size) Tipped in coloured frontispiece and profusely illustrated with 31 black and white lithographs, showing the main types of 6 ton “under-type” wagon and trailers available, and types of load carried, together with a brief section on the short-lived Sentinel 5 ton “over-type” – with machinery mounted traction engine style above the boiler. Beautiful illustrations of all engine and boiler parts, layout of controls in the driving cab etc.