Original Harrington and Richardson started in 1871 and was in existence until 1986. ![]() My guess is that your rifle was probably assembled in mid-1954. Ilion made barrels will have the last 4 digits of the frame serial number engraved on the left side of the barrel underlug, earlier barrels made in Gardner will have just the last three. One of the oldest manufacturers of firearms in the United States. Scott Duffs book 'The M1 Garand Serial Numbers and Data Sheets' shows H&R 5488548 having a barrel date of 7/54, 496827 with a 6/54 barrel. The first letter N = NEF, H = H&R, the second letter denotes year of manufacture. WH=1995-2001 Wesson & Harrington rifles and shotguns, six digit serial numbers run consecutive, no change in prefix for different years, H&R would be the only source to determine actual year of Mfr. Y=2008 serial number prefixes changed in May 2008 and on, CBA for SB2 and CAC for SB1, the only source for build year is to call and ask (866)776-9292. ![]() Second letter of prefix on NEF or H&R starting with N or H.Ī= 19861987 H&R will only fit the original chambering(replacement for defective rifle), 357Mag, 44mag, and shotgun barrels to these frames Year starting serial number prefix letters on H&R Inc:ġ972 AJ (Huntsman introduced with screw-in breech plug, later changed to push-in)ġ973 AL (first handgun transfer bar mid year)ġ977 AR (transfer bar on rifles and shotguns)
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