"December 19th, 1944
Proposals to change marking and numbering of tanks, SPGs, and engines
The following system is to be used for numbering tanks and SPGs:
- January and February 1945:
- Leave the factory letter codes.
- Keep the year and month, i.e. all factories will start serial numbers with 412.
- Increment tanks and SPG serial numbers, for example:
- Factory #183's first tank built in January of 1945 will have the number T412716 if the last tank built in December 1944 had the number T412715.
- Factory #112's first tank built in January of 1945 will have the number G412316 if the last tank built in December 1944 had the number G412315, etc.