Source: ATF P 5300.11 · Curios or Relics List · Jan 1972 – Apr 20253,573 entries · 4 sections
The C&R RegisterA finding aid to the ATF Curios or Relics List, for Type 03 collectors
C&R · II · 196

Colt Official Police .38 Special, Glahn engraved

Section II: curio or relic, still subject to the Gun Control Act

Official wording

ATF P 5300.11 · APRIL 2025 EDITION · SECTION II · VERBATIM · PDF P. 7 ↗

Colt Official Police Model revolver, cal. .38 Colt Special, having a barrel length of 6 inches, with factory engraving by Wilbur Glahn, S/N 554445.

What this entry requires

  • ATF REQUIRESYour firearm is this edition: “with factory engraving by Wilbur Glahn”
  • ATF REQUIRESConfigured as the ATF wording states: “having a barrel length of 6 inches”
  • ATF REQUIRESYour serial number is one ATF listsATF: “S/N 554445”
  • INFOATF states no date; production was about 1929.

Editorial facts · Our research

Country
United StatesBasis: outside reference ²
Manufacturer
Colt's Patent Fire Arms Mfg. Co.Basis: the ATF wording
Type
PistolBasis: the ATF wording
Action
OtherBasis: outside reference ³
Caliber
.38 SpecialBasis: the ATF wording
Made
S/N 554445 · c. 1929production; ATF states no dateBasis: outside reference ¹
Service
Commercial

Source

Official wording
ATF P 5300.11, April 2025 edition · Section II · PDF p. 7 ↗ · ATF original ↗
Entries
1 line
Verbatim check
Checked against the PDF text before every release
Editorial facts
Confidence: High · Last revised 18 October 2026 (Evidence pass) · How we rate confidence
References
  1. 1. oldcolt.com ↗, years: Official Police: 543000 in 1929, 559500 in 1930
  2. 2. Wikipedia, “Colt Official Police” ↗, country: infobox origin United States
  3. 3. Wikipedia, “Colt Official Police” ↗, action: ATF names an Official Police revolver; infobox action Double-action
Fact tags
  • ATF the ATF wording states it.
  • REF ¹ an outside reference supports it; the number points to the list of references.
  • ESTIMATE an approximate or indirect reading, for example the production range of the base model.
  • NO CITATION we haven’t attached a reference for this fact; it’s our editorial reading, not ATF’s.
Source checked
20 October 2026: ATF’s page still lists the April 2025 edition
Corrections
2 changes · see below

Correction history

  1. Data-trust reviewEditorial confidence: Low → High. Re-rated after supporting references were added or re-checked.
  2. Data-trust reviewYears: 1928–1940 → 1929. S/N 554445 ships in 1929

All corrections · How corrections work

Historical context

Colt Official Police (base model shown for Colt Official Police .38 Special, Glahn engraved)
Shown: a standard Colt Official Police, not this Wilbur Glahn factory-engraved revolver.

Image: Wikimedia Commons, “Colt Official Police 38 Revolver-NMAH-AHB2015q021272.jpg” by The Smithsonian Institution, Public domain. Retrieved October 2026.

Summary: Wikipedia, “Colt Official Police”. Text CC BY-SA 4.0.

FROM WIKIPEDIA

The Colt Official Police is a medium frame, double-action revolver with a six-round cylinder, primarily chambered for the .38 Special cartridge, and manufactured by the Colt's Manufacturing Company. Released in 1908 as the Colt Army Special, the revolver was renamed the "Colt's Official Police" in 1927 in order to better market to law enforcement agencies. It became one of the bestselling police firearms of all time, eventually coming to exemplify typical law enforcement officer weaponry in the 1950s. The Official Police was also used by various U.S. and allied military forces during World War II.