Probably a rack number. Protective mask were usually checked in and out of a central storage area to keep people from playing with them and damaging them.

His PHONE NUMBER is also listed on the facebook page at the top & UNDER CONTACT INFO Left side near the top

Theory:  Robbins accidentally used coin silver for a small batch?     My initial thinking upon seeing these was the purpose was to obliterate a Robbins hallmark (Robbins wholesaling their product to other retailers), but agree that this appears to have been an obliteration of the sterling mark.   Clearly a genuine badge.  Quite mysterious!   Warm regards.   Chris

Saw this at an estate sale in Dallas last weekend. Definitely could use some TLC….🤣

@markie916 possibly, feel free to contact me privately on the forum and we can discuss details 

Picked up a few scout dog related photos at a recent estate sale in Dallas.  The gentleman retired from UPI (united press international) as a photographer. 

Picked up a few scout dog related photos at a recent estate sale in Dallas.  The gentleman retired from UPI (united press international) as a photographer. 

Picked up a few scout dog related photos at a recent estate sale in Dallas.  The gentleman retired from UPI (united press international) as a photographer. 

More theater made ribbon bars- described in the posts above.

It's "yard sailing season" here in "Pure Michigan" spotted this after several stops prior.  A September 1941 dated 75 caliber MK1 Navy round.  Not my cup of tea but I couldn't leave it behind.  If anyone knows more about it, please share.  I originally posted this in the "last finds" section.  Any idea as to current value?   Thank you in advance and Thanks for looking!   OD