Hi Brad,
ERFURT or DWM??
9 mm or 30 Cal??
Some basic info:
Double dates are WWI Reworks of the Weimar Era
3 7/8 in is mostly a Commercial barrel lenght ( has been seen on some Military Models like Simson's )
1936 Holster of Nazi Era to go with Mauser ( S/42 ) P-08
Black Bakelite Mag with E/37 FXO markings to go with BYF 41 or 42 Coded P-08's
PICS would be helpfull...
Kidvett