A nice 1938 11¢ Plate # block of 4 James Polk Prexie stamps, Scott #816.  The ultramarine color in these Post-Office fresh, mint never hinged stamps with original gum is crisp and vibrant.  Interesting and attractive historic item.  Fine condition; sharper than the image may appear.  If the image does not readily appear, please try hitting your computer's reload or refresh button while viewing the item. Successful bidder to pay $1.50 shipping in the US ($2.50 elsewhere); insurance extra if desired. PayPal accepted for payment. Questions -- please ask~