Lot
907 
1912, $1 violet brown, tied by "New York, Sep 2, 1916" duplex cds on locally addressed cover, blue E.D.W. Blackburn & Co. oval corner card handstamp, Very Fine, an extremely rare usage of the 1912, $1 violet brown issue and reported to be a unique usage on a full size cover; with 2005 P.F. certificate. Scott No. 423 $7,000.
Realized: $12,000