Lot
1700 
Circular Grid, two strikes tie two 10¢ brown (150) singles, both well centered, on 1870 folded cover to Amsterdam, Holland at double the 10¢ treaty rate reflected by blue crayon "2", red "New York Paid All Br. Transit Jul 28" exchange cds, endorsed "Pr Hammonia", Amsterdam (7.10.70); small flaws, Very Fine and choice use. Weiss No. TR-G37 Estimate $300 - 400.
Realized: $350