Panama, 1887 Official Colon A.R. registered pink envelope, printed envelope with printed registered "R" box with manuscript no. "739" to Paris, France; Calais-Paris (6.11.87) railroad transit cds, reverse with Paris (6.12) arrival cds, Very Fine. Scott No. Panama F unlisted  Estimate $500 - 750. THE ONLY RECORDED EXAMPLE OF THIS OFFICIAL A.R. REGISTERED ENVELOPE RECORDED. $0 (Image)