huckles
I read your previous post about the Ecuador stamps for the 150th Anniversary of the US Constitution. I then checked for Brazil and I found one in my cat. Last weekend at the stamp show I bought Brazil stamps as I collect this country. I realised back home that I bought the Constitution stamp.
Brazil 1937 Scott #451
This stamp must be popular because it's jump from $0.85 in Scott 2007 to $2.75 in Scott 2013.

I can look for Scott # for your list later on.
Daniel