EXTREMELY FINE 10-CENT FRAMELINE STAMP ON A BEAUTIFUL COVER.
The most important characteristic of Scott 10 is the frameline around each stamp. The lines were engraved on the plate and served as a guide for the siderographer when aligning the transfer roll to make the plate. Each stamp shares framelines with the adjoining positions, which means most stamps show only a portion of the four framelines. A stamp that captures most or all of the framelines does so at the expense of its neighboring positions, and is very rare.
Ex Dietz and Kilbourne and from our 1995 Rarities sale.