Modern Bllack Powder Prooffmarks

[Quincy1]

Found this tonight hope it's not a repeat posting.

Quiincy1

https://store.bluebookinc.com/Info/PDF/POWDER/MBPProofmarks.pdf


This completes year marks!


BU=2004
BZ=2005 (skipping BV,BW,BX, and BY),
CA=2006

[Silver Creek Slim]

Thanks.

Slim

[Steel Horse Bailey]

Howdy!

Quincy 1, thanks for posting this.  Another time, someone posted these as (if I remember rightly) Uberti date codes, but this fleshes out this info.  Also, along with your 2004-2005-2006 listings, I have these listings as well:

CB - 2007
CC - 2008
CD - 2009
CE - 2010


Beyond that, it's hard to tell