Hello. I am a avid stamp collector. Unfortunately all of this looks pretty common. The most valuable stamps are the China ones that I see. A few bucks, I would have to look them up in the Scott catalog.
Your old-appearing $1 blue stamp on your first pic is actually a modern (1994) stamp that retails for about 50 cents.
Don.....
PS: Welcome to treasurenet, Tomplacer !!