Lot
602 
Panama, British-Packet-Agency, Panama, SP 23, 00, two strikes of blue cds on legal-size Official "British Packet Agency, Panama" envelope to New York N.Y., reverse with Panama (9.24) and New York Paid All (10.2) arrival cds, Very Fine, One of only a few non-philatelic uses of this agency.. Estimate $400 - 600.