ERMA-Werke mod E M1

[paratroop]

So I've had this rifle forever, and my old man had it long before me. I lost the screw that held the rear sight in, so I never even shot it. Last week I finally threw a cheapo walmart scope on it and took it shooting. It had some issues at first, but I guess it warmed up and started to function flawlessly. I liked it so much, i decided I needed more mags. that started my research.

Needless to say I have already given up hope on the spare mags. But here's my question; Magazines for this model were made in 5, 10, and 15 rounders. My mag is 12. No modifications, no obstructions, it is definitly just a 12 round magazine. Any ideas?

It has a 67 proof date, and serial in the mid 13000's.

[animal661]

I just finished koting 1 for a friend
you can fit 12 in a worn 10 round mag
make sure to clean it regularly - they jam easily
his jammed all the time and we found that the weaver scope mount shrouded the ejection port - they dont eject sideways but rather up,right, angled - kinda everywhere