Welcome~ The CHURCH were Germanicon made for the German Military after the war.. They are very scarce in the US. SEYs are fairl;y common. I just picked up two at $65 each. One NOS in original wrapper and one 90% with one rust spot from storage. I actually paid a bit much, as it was Ebay, but but was still happy because of the condition. Gunbroker usually has used SEY or J (Jahn Vietnam era mags) for $50 + or -