I got an invoice this morning from “Colt Archive Properties, LLC” for a historical letter on this gun. While this is only an invoice, and not the actual letter itself, the invoice says they have completed their research and “Once the invoice has been paid, your letter will be typed & mailed to you by USPS, and you should receive it within 2-3 weeks.”
I submitted the letter request on September 30th of 2023. So we’re looking at almost exactly six months from Colt letter request to completion of the research and notification. The FAQ says “90 to 100 days“.
Not that I’m complaining, just providing a data point for anyone out there who may want to request a letter.