Hi Dr. Rob,
If you want a real one for a bit more money, Simspon LTD has the E/63 variety for $ 45.00...which I think is correct for your 1939 Mauser luger :
http://www.simpsonltd.com/Merchant2/merchant.mvc?Screen=PROD&St ore_Code=SL&Product_Code=OKTE63&Category_Code=LA
Regards,
Pete... <img border="0" alt="[typing]" title="" src="graemlins/yltype.gif" />