1860s CSA 6 ON COVER W/CERT; HICKEYS / PRINTING FLAWS! TIED BY CHARLESTON SC PMK

Stamp: CSA 6

From: USA

Description: 

Great cover, margin example of stamp tied by May 21 double-circle postmark. Stamp has multiple transient printing flaws, one of which closely resembles "blind eye" variety. Great EFO item!! Accompanied by 2008 CSA cert. Close at top, but huge margins otherwise.