Harrington & Richardson did not make a Model 1900. Hopkins and Allen did.
Your harrington and richardson model 900 was made between the years 1962-1973.
2013
No where. They went out of business several years ago.
Since you do not say, whether your Harrington & Richardson is a pistol, rifle or shotgun and you do not show a letter prefix to the serial number, I can only give you limited information based on a Model 48 Topper Single Shot Shotgun which was manufactured for a period of 14 years between 1943 and 1956. I hope this helps, until you can supply more information on your shotgun.
Made by Harrington & Richardson as their Model 120, it began production in 1941. In 1942, they stopped production of civilian firearms due to WW 2. Only made for 2 years.
Impossible to answer. Harrington & Richardson company was in business for over 100 years, made millions of firearms- and was restructured under a slightly different name, and still makes firearms today. Value of ANY gun is based on exact make, model, caliber, and condition. You gave us none of those.
The model of your gun is nicknamed "the sidekick". It was produced between the years 1956-1985. It's mainly used for hunting small game. It came in 3 different barrel lengths. 2.5" barrel- $71.00 4" barrel- $86.00 6" barrel- $106.00
Value of ANY gun is based on make, model, and condition. You gave us one of the 3 things we need. There were several models of revolver made by Harrington & Richardson over a great many years. Values could range from $10 to $400.
Kevin Harrington is 52 years old (birthdate: September 4, 1959).
Othella Harrington is 37 years old (birthdate: January 31, 1974).
Josh Harrington is 33 years old (birthdate: August 21, 1983).
Pádraig Harrington is 40 years old (birthdate: August 31, 1971).