Nice June 24, 1938 duplex and machine cancels from Amarillo, Texas on this cover that was sent via Airmail Special Delivery to Mobile, Alabama where it was backstamped the next day.  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~