Pacific Union Express Co., Paid., rare black printed ribbon frank on 1864, 3¢ pink entire (U59) to Treasure City, Nevada, blue "Pacific Union Express Co., New York, Nov 5" cds (PAU-101) which is only found on the black franks applied to entires; cover is missing back flap and reinforced flaws at top, Fine appearance, only five examples of the rare black frank from New York have been recorded. Estimate  $300 - 400. $0 (Image)