Erfurt Police Double Date Frame Mark

[Proofed]

The magazine safety spring was made by Walther and was added to police lugers around 1933. There was a slot milled in the outside frame to locate the tab and a round hole was drilled through the frame and in to the mag well for the tab on the spring to access the magazine when installed. The tab behind the trigger would not allow it to function without a mag, once installed the tab would be high enough to allow the trigger to function. At some point later in the 30's there was a directive issued to disable the magazine safety.
Many were removed and some had the tabs ground off and left in place as illustrated.