SAN SALVADOR to SAN FRANCISCO
10c Light Violet port rate envelope "PAQUEBOT" mail.  Received with
SAN FRANCISCO oval cancel and payment of 20c Postage Dues.
Size: 160 mm x 90 mm

MARH 17: OPICO CIRCULATING
10c Light Violet port rate envelope used for double rate local mail.
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FEBRUARY 1: LA LIBERTAD to HAMBURG
10c Port rate envelope with oval "P.M.S.S. Co. / E.B. MOMANUS / 
PURSER / S.S. CITY OF COLON" ship cancel.
Backstamped BPO TRANSITO PANAMA / 14 FEB
alongside NEW YORK and HAMBURG entries.
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JULY 14: JOCORO to GERMANY
10c Light Violet uprated to 11c outbound rate (4c overpaid).
Backstamped SAN SALVADOR, July 21.
NEW YORK TRANSIT and DUREN entries on the side.

SCARCE ORIGIN


ADDRESSED TO PARIS
With British Post Office TRANSIT PANAMA / 17 OCT postmark.
NEW YORK TRANSIT entry on verrso.

JULY 26: LA LIBERTAD to SAN SALVADOR
10c Light Violet port rate envelope used for double rate local mail.
SAN SALVADOR next day entry on verso.