This first variation AC41 code P.38 is equipped with the rare experimental open sear (See ""The P.38 Pistol, The Walther Pistols 1930-1945, Volume One"" by Warren H. Buxton, pp.178, 171, 153 (Fig. 3-38H, 203, 204, and 303 (Fig. 4-67K). This pistol, serial number 3124a, is circa February 1941. It has an excellent bore with bright, strong rifling. The gun has approx. 98% of its original bright blue finish.  The left side of the slide is marked P.38 followed by AC over 41 followed by the serial number. The right side has the eagle firing proof and two eagle over 359 Waffenamt acceptance stamps. The left siide of the frame has the serial number over the trigger guard followed by an eagle over 359 acceptance stamp. The front left of the trigger bow is stamped ac. The internal serial numbers are mathing. The trigger, open sear, barrel lump and decocker also have eagle over 359 acceptance stamps. The dark brown grips are excellent. The right panel has the special relief cut to accoodate the experimental open sear. The numbered but mismatched magazine (4965a vs 3124a) is eagle over 359 acceptance stamped and is marked P.38 on the left side. The action functions correctly. Buxton documents only about a dozen open sear guns. No one knows why they were experimented with as they had to be milled and fitted rather than stamped. Obviously, a handful were made, and in typical Greman efficiency they were used up in production. Add this to the rarity of the AC41 pistols due to their loss on the Russian front and this pistol must rate as very rare. If you're into earrly WWII P.38 pistols in super shape and with rare variations, this Walther P.38 is a must for your collection.