Hello Dwight,
My 1913/1920 Erfurt police-modified luger does not have a stock lug and is serialled # 4304a...
<a href="http://forums.lugerforum.com/lfupload/peteserfurt4.jpg" target="_fullview"><img src="http://forums.lugerforum.com/lfupload/peteserfurt4.jpg" width="400" alt="Click for fullsize image" /></a>
Regards,
Pete... <img border="0" alt="[typing]" title="" src="graemlins/yltype.gif" />