India 1854 2a green imperf tied by dual cancellation of diamond of dots and “B/166” type 7 on 1856 (Jun 18) cover from Shergotty to Calcutta with dual cds of Shergotty in red and in black, and Calcutta 2nd Dely cds. Covers with dual cancels are extremely scarce, with probably only a handful known from the lithograph period.
SG SG 31 Cat - Scott Type Cover
