I was planning to also post this in the ID portion. Spanish rimfire double, Eibar Proof and Smokeless powder proof, S50 indicates 1948 date??, imported by Sanderson in Portage, Wisconsin. On bottom of barrels 9m/m45 is stamped in an elongated oval, serial number is AGxxxx, under the fore arm the bar...

Thank you for the reply. Are any of the cartridges shown in the photos in your post that length? I noticed that I made a typing error in my post. The stamping on the barrel is ( 9m/m 45), the numbers are in an oval. jorgen

The 9mm garden gun takes a rimfire shot cartridge. I think the silver one in the picture is the commonly available one. The other three to the left are vintage examples. The little one on the right is something else. Regards Peter. http://img.photobucket.com/albums/0703/PeterN/Cartridges/Shotcartsr...