I've seen different info about stamps as consideration. One is, if you sign thru the stamp, it makes you the postmaster of that document the stamp is on, and the court has no jurisdiction over that document. Backed by the UPU.
Then I've heard -- any stamp is fine on the back of a document.
Then I've heard -- don't sign thru the stamp on the back, the court will cancel those with their court stamper.
Then I've heard - -the 2 cent stamp is the original dejure stamp, so use that.
I can't get no satisfaction!
Yes, standing on your paperwork is key.