That certainly is a grail piece. I've been loosely hunting for a 20 or 28ga with double triggers. I've read conflicting info about when the double trigger/single trigger change was made?
Double trigger were 31 - 32 ish. Single trigger started in early... 1931 to 33 or so. Early guns (this is three-digit serial number) were often retrofitted by the factory. Which I think is the case with this one. It has extractor, only. No double ejector. I have a Cody Letter inbound. Which should confirm. Again, not uncommon with the earliest guns. Single trigger fitted. Ejectors not fitted. As that was a pretty involved conversion.
I'm kind of a Parker guy when it comes to American guns. But one has to also love the L.C. Smith, the A.H. Fox, the Ithaca and the 21. Because they were all the American Best Guns. Can't have one without appreciating all the others. They rank with the London Best guns in engineering and quality and probably outrank them in some ways. They are outranked in engraving and heritage.
But if you want to kill birds, my Parker 20GA Trojan is the best gun I ever fielded. Though I have a lot more dead birds with a Purdey... the Parker is the only one I shot two doubles on grouse with... and have never missed a single bird (or rabbit) ever.
So... 'Merika!
This 21 is a grail piece indeed. Trying to find out from the 21 expert community... if the engraving is a plus or a detriment. The engraver is legendary. The quality of the work puts it 'before or after' his halcyon days. But not sure that matters. He was one of the best in the world in his heyday. Still working on that. On my end, however, it's an American Best gun with engraving (post-factory) by one of America's best engravers.
So... could be a great piece. Or could be an also-ran. But I bought it for almost nothing. So nothing ventured, nothing gained.
Cheers
Sirhr
PS. Patterns beautifully! This is about the most perfect pheasant gun (choke-wise) that I own. I'll take it down to OK this spring and test it out!