Pretty old fowler with a replaced lock. Unless there is a LOT of direct first hand resources discussing the gun that's all it is. This:
"This musket has a number “34” thinly & precisely carved on right side of buttstock making it among the first National arms of the United States."
Is beyond silly - the doodle on the stock is just that - precisely craved?
? Not my definition of precise.
I can only see and read what is listed - but to me that's just a pretty old fowler - 4 - 6K would be my tops and that would be if everything else checked out ok - which - since its an auction house - it was not checked out thoroughly I can almost guaranty. No offense to Poulins but I know first hand every gun is not given a thorough checking if any checking at all - many just get the sellers description with no verification "fine print = in no way does the description guaranty authenticity - that's up to you" - you can go read their terms.
Having had some bad experiences lately (not too bad - money back) I'm now stating again - NEVER buy a story buy a gun. And inspect that gun for at least an hour under 30x magnification - pull the lock for sure - scope the bore for barrel lengthening, etc. That brass plaque - unless there is an old (really old) newspaper article, will, something that concretely says that gun was that soldiers and mentions that plaque - it's not his. The number of true provable Revolutionary war used guns could be counted as less than probably 20.
I'm calling "super suspicious, possibly spurious, and basically BS on that story". I could be 100% wrong - BUT - the last iron clad Rev War gun I saw sold went for over 300K.