Colt Service Model Ace Serial Number SM355 - Early
variation with earliest style slide markings. Pistol was
shipped to the U.S. Government, Springfield Armory, July 26,
1937 in a 155 gun shipment.
Left side of slide has patent dates that
appear on the Model of 1911 and Government Model pistols:
Right side slide markings are from the Ace
roll die with the words "SERVICE" and "MODEL" on opposing
sided of the bottom of the Ace diamond on the right side:
Pistol SM355 has matching numbered slide.
This pistol was in an early shipment to Springfield Armory.
Additionally, there is a record in the Springfield Research
Service of SM355 indicating the U.S. Navy received it from
Springfield Armory on November 2, 1937.
Colt Service Model Ace Serial Number SM355 - Left
side
Colt Service Model Ace Serial Number SM355 - top of
slide showing earliest style Stevens rear sight, floating
chamber and front sight.
Colt Service Model Ace Serial Number SM355 -
underside of frame, front grip strap, non-lanyard loop
mainspring housing and earliest style Ace marked magazine
base plate.
Colt Service Model Ace Serial Number
SM355 - top view of Stevens sight.
Colt Service Model Ace Serial Number
SM355 - rear view of early Stevens sight. Note the use
of fire blued screws on this early sight.
Colt Service Model Ace Serial Number
SM355 - ejection port showing floating chamber and early
style slide markings.
Colt Service Model Ace Serial Number SM355 - Earliest
style Service Model Ace magazine, arched mainspring housing
with plain base (no lanyard loop).
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