Private and Confidential. Agricultural Engineers Association. Engine & Thrashing Machine Section. 1st, January, 1928. Revised and Final Edition. Plus: Private and Confidential Price List. E. & T. M. 1st December, 1926. Detailed specifications and pricing for: Thrashing machines, Stackers and Straw Elevators, Clover Hullers, Portable & Semi-Portable Steam Engines, Steam Tractors, Steam Road Rollers, Agricultural Traction Engines, Convertible Engines and Tractors, Road Locomotives, Traction Wagons, Rubber Tyres for Road Locomotives, Traction Wagons and Scarifiers, Sleeping Vans, Water Carts Etc. Plus Schedule of Freight Charges to Ireland and the Isle of Man. Last page of 1928 document has the following: We, the undermentioned firms, Members of the Engine and Thrashing Machine Section of the Agricultural Engineers' Association, Hereby Approve and Adopt this Schedule of Prices in Substitution of the Schedule referred to in Article 1 of the Agreement of May 17th, 1920, or as subsequently a