1938 S/42 Luger

According to Jan Still--Third Reich Lugers: right front receiver would have two Eagle over 63 or one Eagle 63 and one Eagle 83 followed by a stick shape eagle with downward slop wings this is army test proof and also appears on right side of bl. just forward of the receiver. Still estimates serial range 400b-4500n. Total production 113,800. My 1938 has 2 Eagle 63. The Eagle has a straight horizonal wing. 1937 and earlier Eagle 63 are droop wing variation. Original 1938 clip bottoms also have the Eagle and 63 proof. Harry Jones in Luger Variations says " It must me remembered that Lugers were assembled and tested[proofed before they were serialized;The Luger was dissembled before serializing and bluing. Page 46