cover 90r Black (3), grayish black shade, vertical pair, with good to large margins and showing frameline at bottom, light vertical wrinkle, used with 60r Intense Black, early impresssion (2), with large margins, on reverse of 1845 (April) folded letter to Rio Grande, tied by two light strikes of the CGC double circle d.s., the letter has a heavy horizontal crease through the address panel and other slight faults, otherwise fine-very fine and a rare franking est.