Canal Zone, Dec. 1926, 2c carmine George Washington, Perf 10, Rotary Press printed (#97), Block of 4 with selvege at right. Unused, right 2 Lightly Hinged/left 2 Never Hinged, Fresh & F-VF+. Bottom left stamp with Broken "Z" of ZONE. Type B "CANAL ZONE" overprint with Sharp A's on U.S. #583. 1st Printing, 9mm Spacing. Scarce & Attractive Block of this Notoriously Difficult stamp!