Any One Know The History Behind These Numbers

[TriedStone]

There were numbers stenciled on the side of my block during production. I have seen them on other Series I & II blocks before. Does anyone know the history behind them?

[BobJones]

Good question, I have no idea. Hope someone does.

[gudjeon]

I had similar markings on a ser1 block myself. The ser2 Forum has not come up with a clear answer either.

http://www.series2club.info/forum/index.php?topic=35664.0

[TriedStone]

I had similar markings on a ser1 block myself. The ser2 Forum has not come up with a clear answer either.

http://www.series2club.info/forum/index.php?topic=35664.0

I had asked there initially. They usually have an answer but this one seems to have stumped them too.

[bkreutz]

I don't have any real information, but they sure look like military depot numbers (kind of an inventory and QC control), just a guess, but it's the first thing that popped into mind when I saw them.