FINE APPEARANCE. ONLY 17 USED EXAMPLES OF THE 12-CENT PERF 10 AT TOP OR BOTTOM ARE RECORDED IN OUR CENSUS. ONE OF THE RAREST OF THE PERF 10 ON ONE SIDE VARIETIES.
Our census of Scott 512b, available at our website at https://siegelauctions.com/census/us/scott/512b , contains only 16 used, one on cover and four unused examples of this rarity, including the unique pair offered in the previous lot.
Census No. 512b-CAN-16. With 2015 P.F. certificate.