(London, England, to Newport R.I. via Boston, May 24, 1764) "Bosn 4.16".
Manuscript postmark and 4dwt 16gr rate on May 24, 1764 datelined folded letter from London to Newport R.I. via Boston, manuscript "p Capt. Jarvis"
of the ship Hannah
at bottom, old mathematical notations on back, fresh and Very Fine Boston Colonial letter using the official "currency of account" pennyweights and grains of coined silver, 4dwt was the published rate for a double letter sent 60-100 miles, this cover was charged an additional 16gr ship fee
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