Somewhere in my "archives" in a very, very(?) safe place is the EAS magazine from 1975 that shows the ad for the Bicentennial Rifle. I'm thinking that a limited number, 300?, 1,775?, were to be crafted and delivered over a number of years. There may have been a number of "Kentucky" pistols in the offering. I'll have to look and see if I can find the magazine advertisement. I think the magazine bottomed out in the '80's.
The building was split between Larry, and the late John Bivins. A companion hunting bag & horn were to accompany each rifle, maybe? I'm thinking maybe Larry "stepped out" for awhile, and Jack Haugh took his place.
This project got John Bivins in trouble with the IRS, because in its mind, John and Larry were "manufacturers" and were required to pay taxes, including excise taxes(?) The battle with the IRS was expensive, so the late John Baird of Montana, who published "The Buckskin Report" (later, the Black Powder Report), set up a "Defense Fund" for John Bivins. It was fairly successful, but the "up against City Hall" took its toll on John Bivins.
There's a customer of mine here in NC that is considering selling his set.