Rams, Sextons and Grizzlies have a Hull number or Shop number which started with one and progressed through production, though some blocks of numbers were not used.
On a Ram it is stamped into the top centre of the heavy tube that supports the front fenders. On a Sexton it is stamped into the upper rear vertical plate, just above the cranking handle hole. On a Grizzly it is stamped into the outside of the front of the hull casting, centrally directly above the transmission. The stamps are about 1/2" high but sometimes not very deep.
There is a direct relationship between the Shop number and the War Dept. number so one can be worked out from the other if you know the batches.
David
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