Rich DiFlorio CollectionWorld War Two (ca. 1942) Numbered Conversion Unit
serial number U1354 -
complete with original box, instructions and all
accessories. Listing of eight component parts (as opposed to
seven in post-war box) for the pre-war .22 Service Model
Conversion Unit printed inside box lid. Two tone magazine
with "Service Model" designation on the floorplate. This
unit was one of 15 units sold to the United States
Government and shipped May 5, 1942 to the
Depot Quartermaster, United States Marine Corps, Philadelphia, Pennsylvania.
Processed on Colt Factory Order Number 241.
View of the right side of the Colt Service Model Conversion
View of the left side of the Colt Service Model Conversion
Floating chamber - note how it's polished bright and
Right side profile.
Conversion Unit component parts in the box.
Barrel muzzle also polished bright and unfinished.
Magazine base marked "COLT 22 L.R. SERVICE MODEL ACE"
Underside of conversion unit.
Instruction sheet code Form A217
Standard ".22-.45 Service Model Conversion Unit (Floating
Chamber)" label on top of box.
Pre-war 1940s vintage standard end label.
"U" prefix number on the top of the slide just ahead of the
rear sight. This specific unit letters as having been
shipped to the United States Marine Corps (USMC) in 1941.
Complete set of pre-war components. Rampant Colt is present
on the left side of slide only (on pre-post war numbered
unit, Rampant Colt logo visible on both sides of slide).
Left side of slide bears "COLT'S PT F.A. MFG. CO.
HARTFORD CT. U.S.A." and patent markings.
Late style Stevens sight, rear view.
Later style Stevens sight, left view.
Later style Stevens sight, right view.
Front sight - muzzle view.
Colt Service Model Ace milled feed ramp.
Colt Service Model Ace factory instruction sheet with
Form A217 printer's code.