Canal Zone, 1904, 5¢ blue. Block of 4, o.g., hinge remnants, deep rich color, top pair with small thin between, otherwise Very Fine. Scott No. 6  $525. $0 (Image)

Canal Zone, 1904, 5¢ blue. Tied on 1905 registered cover to Boston Mass. by red crayon, additionally franked with Panama 5¢ (78) pair, 10¢ (79) single, 2¢ (180) strip of 3 + single, 10¢ (F27) + 5¢ (H22), all appropriately tied, New York & Boston backstamps, some cover repairs, otherwise F.-V.F. Scott No. 6  Estimate $100 - 150. $0 (Image)