The serial number is on the knee of the machine It can be obscured by the chip shield. Date Start S/N End S/N 1938 BH-1 THRU BH-39 Round ram 1939 BH-40 THRU BH-252 1940 BH-253 THRU BH-656 1941 BH-657 THRU BH-1549 1942 BH-560 THRU BH-2943 1943 BH-944 THRU BH-4105 1944 BH-4106 THRU BH-4997 1945 […]
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