ERMA EP 652, .22 LR:

ORIGIN – GERMANY
CALIBER – .22 LR
WEIGHT – 17 OZ.
OVERALL LENGTH – 6.4″
LENGTH OF MAGAZINE – 3.00″
An unusual Erma pistol, modeled after the Walther. Some were assembled in the U.S. Probably first manufactured in 1964 and discontinued in 1986.