My 1959 vintage Model 41 is serial number 178XX. Also, this version incorporates a "cocked indicator", pin, just below the slide, and at the rear of the frame. The finish on mine is a matte finish as opposed to a gloss blue. Modern barrels interchange nicely with this older one.
NRA Life Member ... Marine Corps League Life Member
Freedom has a flavor the protected can never taste...
USMC 8652, 2531, RVN Jun '67, - May 69
Some of my toys