Those look like Rev War, Continental Army
New York 3rd Battalion pewters.
The smaller one looks like it might be a 2, but im not seeing that one in Alberts book.
You should ask the mods to change your title to: Rev War, Continental Army, New York 3rd Battalion pewters.
You would probably get way more hits, and some of the experts might check it out, and share more info than i can offer.
The near mint condition of the pewter is a bit concerning, as is the HM benchmark...may be repros, but hard to tell from the pictures. Here are the 3rd NY examples in Don's book
If they are real it's an incredible find
Very cool finds and I'm no expert, but the text does look different from the pics in the book. Still, I'd be pleased with those puppies. Repros or not. Congrats!
Fair chance they are from a reenactor's coat. Very little ground action and the designs are a little different. Lots were made in the 1970's for the bicentennial. The maker's mark on the back are telling. Originals were not marked that way.