Remember this discussion
http://forum.lugerforum.com/showthre...+twodate+Luger The pictures have unfortunately passed beyond the rim. This is certainly still on Jan Still's Forum, along with some pertinent discussion of the 19xx/20 stamp.
Several of these have shown up, usually stamped 1918/20 iirc, both on the Forums and in Auto Mag. It has been speculated that these are post-WWI assembly from parts, and that the pertinent date stamping regulation was followed as though these were intended for government use. Don't know that any of the reports were of LP-08s, all my info on these is filed away right now.
--Dwight