Lot
1543 
1924, 2¢ Washington, rotary press printing, booklet pane of 6, tied by "Washington D.C., Aug 27, 1926" First Day of Issue duplex postmarks on locally addressed special delivery cover to the U.S. Patent Office, delivered with "Captain of the Watch" oval date stamp of the same day, receiving backstamp, Very Fine and rare. Scott Nos. 583a $1,500.
Realized: $650