Help with Artillerie ID Disc

[Larry Gross]

I recently bought a dug German ID disc from an ebay seller in Voronezh Russia. I'm hoping some can verify the numbering on the tag. I already understand the letter abbreviations; ART, Artillerie; ERS, Ersatz; ABT, Abteilung. I just don't know how to decode the numbers.

327
2/1. ART. ERES.ABT. 221

Sorry no pic, I can't post pictures.

Thanks,

LG

[OSS]

The man's Stammrolle (serial) number is 327, from the 221st Artillery replacement Abteilung.

[Larry Gross]

Help with Artillerie ID disc

Thanks, do you know what "2/1" represents?

[Larry Gross]

The man's Stammrolle (serial) number is 327, from the 221st Artillery replacement Abteilung.

Thank you. Do you also know what "2/1" represents?