BINGHAMTON,N.Y./MAR 23/330 PM/1894 18mm Black CDS, with Black International Type C11(1) cancelling 2 cent green stamped envelope (#U311). Pair of magenta NYPO auxillary markings.
BINGHAMTON,N.Y./OCT 6/11-PM/1894 18mm Black CDS, with Black International Type C11(1) tying 2 cent brown violet Columbian Exhibition Issue (#231).
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