Jim: Mostly I agree, but in this case its a huge bust outside the known SN range.
I am intrigued maybe as much as Grant is (but I like stuff like that)
I know of a 1917 that is like 50k higher (with stamps) but Nat Ord did not make 750,000 as the figures show.
GOOD TO REREAD THINGS AND THANKS TO JIM AGAIN:
YEAR SERIAL NUMBERS QUANTITY
1965-1966 6,000,001 to 6,030,000 2500
I read that as 6,00,000 range and 2500 made. From what I am not sure unless it was recovered receivers of some kind. That part looks to be resolved!
I would also tag it (I have some items I have done that with so if something happens to me family going through my oddity and entities would know they are special value (in this case)
My wife was out with a friend at a garage sale and found an Accordion a while back. I think she paid $250 for it. She was nervous I would be upset (no anyway) - yes I would like to see it, accordions are cool, you don't do things like that often.
Phewee, Honey, I think you found something worth a lot more than a run of the mill one. From the accordions I have seen quality wise I am guessing its $1 -1500.
Turns out to be around 2k value.
Not to harp on good deals and things, but tags are good idea for special items be it an odd gun you won't want someo0ne to shoot or an accordion that has been left behind that was worth a lot (or requires special handling)
You can put the tag behind the gun if on display, put it in the magazine so that its obvious if someone cycles the bolt.
Might seriously consider neutering it with a trigger removal or part there off.