(120-B) Serial numbers located on a metal firewall plate. The plate also showed the body type number and the production number of that particular car, starting with a base number of 200. Starting: body type number plus 201. Engine numbers located on boss on upper left corner of cylinder block. Starting: X-27500, Ending: 99999. (1400, 1401, 1402) Serial number located on a metal rectangular plate on the firewall. The plate also showed body type number plus the production number of that particular car, starting with a base number of 200. Starting: body type number plus 201. Engine numbers located on boss on upper left corner of cylinder block. Starting: 390500, Ending: 395499. (1403, 1404, 1405) Serial number located on a metal rectangular plate on the firewall. The plate also showed body type number plus the production number of that particular car, starting with a base number of 200. Starting: body type number plus 201. Engine numbers located on upper half of crankcase, left side, front end. Starting: 757000, Ending: 758499. (1406, 1407, 1408) The body type code plus the production number (vehicle number) was used on the rectangular plate mounted on the firewall. In 1936 the body type and production numbers started with a 200 base. Body type number plus 201. Engine serial numbers. Starting: 904000, Ending: 905499.