1845, New York, N.Y., 5¢ black on bluish, Se-tenant Pair, "AC" connected & "ACM" Connected. horiz. pair (Pos. 13-14), four large even margins, tied by blue pen strokes on 1846 folded cover to Buffalo, N.Y. with red "New-York/21 Mar./10cts." cds with "Paid" in arc alongside, two vert. file folds (not affecting pair), Extremely Fine, a wonderful item showing this rare combination, the off cover Se-tenant pair catalogs $4500. Scott No. 9X1-9X1a  Estimate $3,000 - 4,000. $0 (Image)