Ship Letter 1848, Puerto Rico to Boston via St. Thomas Forwarder. Folded letter landed at Norfolk and rated "12", being 2 cent ship letter fee and 10 cents internal postage, large red oval "Forwarded by / Whitemore & Co. / St. Thomas", scarce forwarder and an uncommon route, Very Fine. Estimate  $400 - 600. $0 (Image)