Lot
208 
(New York) "Castletown St island, the 24 December - 1817", manuscript postmark with "18½" rating on folded letter to the Comptroller of New York at Albany; file folds, Very Fine and rare Staten Island postmark. Estimate $150 - 200.
Kay & Smith list town as "Castleton", which this letter proves is incorrect.
Realized: $160