Thanks- Ok that helps. I just wanted to know if it was a Tula vs Izhmask/Izhevsk mark. It sounds like it has nothing to do with a particular maker.Richard W. said:The only reference I can lay hands on for Soviet stamps is Terence Lapin's The Mosin-Nagant Rifle.
On page 191, he states that the box with a verticle line dividing it indicates post-WWII arsenal refurbished wood parts and a box with a diagonal line is for arsenal refurbished metal parts.
I agree with this assessment, I had a crate of "honey brown" AKM buttstocks (and handguard sets) - brand new, no screw holes, parkerize metal parts. All buttstocks had the square with horizontal line stamp. I think its safe to say these are replacement inventory. Curiously the handguards had no such marks.Hootbro said:I have handled NIW AK and AKM undrilled buttstocks with the same marking. Leads me to believe it is also to signify a repair spare.