I can't say about the origin; but I have found some myself on some old sites that were similar, so more than likely a generic design for the time they were used
You know, anytime we find pewter buttons like that on a site we stick around, it's the nice age that gives us some of our older finds, although Rev War era is what we like sometimes these predate that timeframe
And for the record, I'm in no way an expert, I just keep my eyes open and remember things that I can use someday to help me with my own finds, and I'm only too happy to share what I've picked up along the way