Boyd's City Express Covers. 17 covers & front; including one stampless, stamp usages including two #20L4 usages, #20L7 (3), #20L7a (2), 20L8, 20L14 (4), 20L15, 20L23 (plate B), 20L44 (2, covers defective) and a #20L56 usage, some cut-to-shape and die cut; condition mixed. Estimate  $500 - 750. $0