USA stamped envelope 1936 Third Annual Banquet I.B.T.P.S., Chicago, IL. 2 cents stamp. 

Check out the pics for the condition. 

The envelope has been opened and is empty. 

In the next couple of months/years, I will be listing thousands of rare FDC's and stamped envelopes from all over the world. 

We combine shipping costs. Please ask for my invoice if you buy multiple items.