1861, 1¢ blue cover group, of 6 covers, includes Double Transfer in "U" At Bottom printing variety (with P.F. cert), Printing Error in vertical pair showing error in lower left corner of the bottom stamp, fancy Square and Compass of Tiffin O. cancel tying single, #63+73 combination on Indiana cover, printed matter rate usage from Boston and forwarding usage with a 2¢ Blackjack, F.-V.F. overall. Scott No. 63  Estimate $400 - 600. $0 (Image)