Edgar, I think the logic of these kind of excesises amounts to"Just wanted to see if it could be done" and how well it could be done.

15 - 20 years ago I was in a shop with a skilled craftsman and he showed me a Parker that was like this gun, but only on one side. The other side was a regular box lock. I asked him why and he said "to prove I could do it".

Both Parker Bros. and Remington Arms Co. made samples of hammerless conversions of their hammer sidelock doubles, but both eventually settled on boxlock hammerless designs for their public offerings. These hammerless sidelock conversions are shown in The Parker Story and in Charles Semmer's Remington Double Shotguns.

See guys I not crazy! I know a Parker when I see one, i have been dealing with them for 50 yrs,, I didn't want to examine it further because I didn't want to buy it. He wanted around $3000 for it and it was in BAD shape.
Patrick, I'm sorry I didnt get to visit with you and thanks for the pics. The only thing I do with my cell is say hello.

When Dan Lefever advertised his service of converting muzzle loading shotguns to breechloaders, he stated. "Just send in the barrels and the trigger plate. That's all we need."

I can't find any reference in TPS regarding conversions, but do see the prototype Hammerless shown on page 121. Where are the conversions shown which you referenced?

Three grand is a lot of money for someones project, but if it truly is a Parker conversion prototype, that might have been the bargain of the century.

Maybe I should have said "sidelock hammerless prototypes". I'm at our place in Kodiak, AK, 3000 road miles from my books and research materials.

Thanks Dave. The prototype shown in TPS is not remotely similar to the gun show find.
My son left Kodiak last year, after being stationed there for 5 years. He's now flying out of Clearwater FL, but hoping to make Kodiak on his next transfer again. He said to say hi to the guys at KISA