I used to sell these years ago and have found an extra one while cleaning the shop.
Powder Actuated Tool. Single shot .22 caliber. Shoots 5/16" (8mm) pins from 1/2" to 3". (same pins that fit a Hilti Tool)
I don't think this one has ever been used. I worked for this company about 11 years ago.They have since gotten out of the PAT market.
I can't send any pins or loads thru UPS or USPS but they can be bought at any BORG cheap.
The tool is probably worth about $50.00
I will trade for about anything. Maybe a pen would be an idea but I'm open to anything.