1916 Erfurt With British Proof marks
 

Here is an interesting old Erfurt....British Proof marks.......also,the frame is unusual in that the bottom of the front gripstrap is not rounded and the right rear frame ear is only lightly machined(if at all)....bet this gun could tell some stories!!!
http://forum.lugerforum.com/lfupload/mvc604f.jpg
http://forum.lugerforum.com/lfupload/mvc605f.jpg
http://forum.lugerforum.com/lfupload/mvc610f.jpg
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http://forum.lugerforum.com/lfupload/mvc619f.jpg