Colt Factory Letters:
Watermarked letters are available by writing Colt Archive Properties LLC in Hartford, CT, with a charge from $100-$500 depending on how ornate the gun is.
Include your name and address, Colt model name, serial number, and check or credit card information to:
COLT ARCHIVE PROPERTIES, LLC
Historical Archives Department
P.O. Box 1868, Hartford, CT 06144-1868.
Please allow for 90-120 days for a response.
Winchester Factory Letters:
Official letters on Winchesters are available from:
Cody Firearms Museum
Buffalo Bill Center Of The West
720 Sheridan Avenue
Cody, Wyoming, 82414
Other Factory Letters:
Records on other firearm manufactures e.g. Smith & Wesson, Marlin, etc. and even those of Hartley & Graham, the New York firm are available, email us for the exact contact information or research online.