USA stamped envelope 1887 Washington D.C. to Mercersburg, PA. 

Thos. J. Fisher & Co., Real estate brokers & auctioneers. 

Check out the pics for the condition. 

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

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