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The mission of the San Mateo County Historical Association is to inspire wonder and discovery
of the cultural and natural history of San Mateo County.

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  1. 22 Caliber Pistol - Revolver

    22 Caliber Revolver, n.d. Engraved curved handle that leads to the firing mechanism and trigger. Trigger is framed by metal oval. Above trigger is 6-shot firing mechanism which leads to narrow cylindrical barrel. Small notched sight on end of barrel. Small metal rod for empty cartridge release below barrel. Handle is engraved with a floral and vine pattern.

    Record Type: Object

    22 Caliber Pistol
  2. .50 Caliber Armor Piercing Incendiary Bullet, 1944 - Bullet, Armor-Piercing

    .50 Caliber Armor Piercing Incendiary Bullet, 1944. Brown metal bullet that is cylindrical in shape. The bottom slightly narrows to a finished edge and the bottom is filled with a metal composition. At top the body narrows to a point and is painted silver. The bullet was manufactured at the Des Moines Ordinance Plant in Iowa.

    Record Type: Object

    .50 Caliber Armor Piercing Incendiary Bullet, 1944
  3. .50 Caliber Armor Piercing Incendiary Bullet, 1944 - Bullet, Armor-Piercing

    .50 Caliber Armor Piercing Incendiary Bullet, 1944. Brown metal bullet that is cylindrical in shape. The bottom slightly narrows to a finished edge and the bottom is filled with a metal composition. At top the body narrows to a point and is painted silver. The bullet was manufactured at the Des Moines Ordinance Plant in Iowa.

    Record Type: Object

    .50 Caliber Armor Piercing Incendiary Bullet, 1944
  4. .50 Caliber Ball Bullet, 1944 - Bullet

    .50 Caliber Ball Bullet, 1944. Brown metal bullet that is cylindrical in shape. The bottom slightly narrows to a finished bottom with an indented circular ring. At top the body narrows to a point. and ends with a finished edge. The bullet was manufactured at the Des Moines Ordinance Plant in Iowa.

    Record Type: Object

    Bullets
  5. .50 Caliber Shell, 1944 - Shell, Armament

    .50 Caliber Shell, 1944. One of three brown metal shells that is cylindrical in shape. The bottom narrows and then widens to a lip. At top the body narrows and ends with a finished edge. The bottom has the engraved letters reading, "D M" and the number reading, "4". The bottom also has an engraved circular ring with three notches. The shell was manufactured at the Des Moines Ordinance Plant in Iowa.

    Record Type: Object

    .50 Caliber Shell, 1944
  6. .50 Caliber Shell, 1944 - Shell, Armament

    .50 Caliber Shell, 1944. One of three brown metal shells that is cylindrical in shape. The bottom narrows and then widens to a lip. At top the body narrows and ends with a finished edge. The bottom has the engraved letters reading, "D M" and the number reading, "4". The bottom also has an engraved circular ring with three notches. The shell was manufactured at the Des Moines Ordinance Plant in Iowa.

    Record Type: Object

    .50 Caliber Shell, 1944
  7. .50 Caliber Shell, 1944 - Shell, Armament

    .50 Caliber Shell, 1944. One of three brown metal shells that is cylindrical in shape. The bottom narrows and then widens to a lip. At top the body narrows and ends with a finished edge. The bottom has the engraved letters reading, "D M" and the number reading, "4". The bottom also has an engraved circular ring with three notches. The shell was manufactured at the Des Moines Ordinance Plant in Iowa.

    Record Type: Object

    Firearm Shells
  8. .50 Caliber Tracer Bullet, 1944 - Bullet, Tracer

    .50 Caliber Tracer Bullet, 1944. Brown metal bullet that is cylindrical in shape. The bottom has a finished edge and the bottom is filled with the tracer composition. At top the body narrows to a point and is painted orange. The bullet was manufactured at the Des Moines Ordinance Plant in Iowa.

    Record Type: Object

    .50 Caliber Tracer Bullet, 1944
  9. Anti-Aircraft Shells, 1940 - Shell, Artillery

    Anti-Aircraft Shells, 1940. Six empty shells (A-F), two metal bullet heads (G,H), and one metal ring (I). Empty shell casings are cylindrical in shape and open at one end. Closed end narrows then widens to flat bottom with a raised ring. Flat bottom has two etched rings in center with text around rings. Two metal bullet heads are small and have oblong oval shapes. The metal ring has threading on the interior side.

    Record Type: Object

    Collection of 50-Caliber anti-aircraft shell cases from Pt. Montara during
  10. Blank Cartridge, c. 1941-1945 - Cartridge, Blank

    Blank Cartridge, c. 1941-1945. Brown metal shell that is cylindrical in shape. The bottom narrows and then widens to a lip. The bottom also has an engraved circular ring. At top the body narrows and ends with a finished edge. The top has purple paper wad that is placed inside the shell.

    Record Type: Object

    Blank Cartridge, c. 1939-1945
  11. Remington Rifle, c. 1871-1879 - Rifle

    Remington Rifle, c. 1871-1879. The Remington Rifle is made of steel and wood. Remington Rolling Block--Manufacturer--Carl Gustaf (crown/c). Remington Rolling Block has an interlocking system of hammer and breech, invented by Leonard M. Geiger--possible the finest single shot actions of its time. A breechblock that can be rolled backwards after the hammer has been cocked, thus exposing the chamber. The rifle has a oval-shaped saddle ring attached ...

    Record Type: Object

    Remington Rifle, c. 1871-1879
  12. SMCSO Pearl-handled Colt .32 ACP Pocket Hammerless Automatic Pistol, c. 1920-1921 - Pistol, Automatic

    San Mateo County Sheriff's Office Pearl-handled Colt .32 ACP Pocket Hammerless Automatic Pistol, c. 1920-1921. Colt Automatic 32 Caliber Firearm patented April 20, 1897, December 22, 1903. Silver colored metal firearm has white pearl handles attached with one screw on each side.

    Record Type: Object

    SMCSO Pearl-handled Colt .32 ACP Pocket Hammerless Automatic Pistol, c. 192
  13. SMCSO Pearl-handled Colt .45 ACP Model of 1911 U.S. Army, c. 1915 - Pistol, Automatic

    San Mateo County Sheriff's Office Pearl-handled Colt .45 ACP Model of 1911 U.S. Army, c. 1915. Colt Firearm patented April 20, 1897; September 9, 1902; December 19, 1905 and February 14, 1911 and model of the 1911 U.S. Army. Silver colored metal gun has white pearl handles attached with two screws on each side.

    Record Type: Object

    SMCSO Pearl-handled Colt .45 ACP Model of 1911 U.S. Army, c. 1915
  14. SMCSO Thompson Submachine Gun (Tommy Gun), 1921 - Gun, Machine

    1921 Thompson Submachine Gun (Tommy Gun) with a 25-round stick magazine. Firearm is comprised of black-painted steel with wooden front and back hand grips and shoulder butt. Butt end of rifle has a black-painted metal plate. There is a metal loop on the bottom end of rifle butt, probably for a shoulder strap. Barrel above front hand grip has 29 circular ridges. Top of barrel end, just in front of sight, has 4 rectangular openings. Proper le...

    Record Type: Object

    SMCSO Thompson Submachine Gun (Tommy Gun), 1921
  15. WWII U.S. Army 50 Caliber Machine Gun Case, c. 1939-1944 - Case, Artillery Shell

    WWII U.S. Army 50 Caliber Machine Gun Case. c. 1939-1944. Expended (empty). Hollow bronze colored metal casing. "S L / 43" on bottom.

    Record Type: Object

    WWII U.S. Army 50 Caliber Machine Gun Case 2010.090.068
  16. WWII U.S. Army Sharpshooter Badge. c. 1939-1944 - Badge, Military

    WWII U.S. Army Sharpshooter Badge. c. 1939-1944. For rifle. Pewter colored metal pin in the shape of a wreath with a cross in its center and a circular target in the center of the cross. Bar hangs below wreath and says, "RIFLE."

    Record Type: Object

    WWII U.S. Army Sharpshooter Badge 2010.090.069
  17. Zap Gun Award Presented to Paul M. Cook, 1968 - Award

    Zap Gun Award Presented to Paul M. Cook, 1968. Zap Gun (A) and mount (B) are two pieces which can be separated. The gun (A) is the original, first zap gun ever made. The barrel of the gun is brass shaped like an oblong sphere that is tapered at the ends. When trigger is pulled, nose of the barrel opens up to release heat. In the middle of the barrel is a embossed ring around the widest part. The back end has a small circular cutout which exposes...

    Record Type: Object

    Zap Gun Award Presented to Paul M. Cook, 1968

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