single with margins all around except just in at bottom, used alongside US 1851 3c Brownish carmine (11A), tied together by "New-York Apl 27" datestamp to cover to Cornwall Bridge, Connecticut, certificate mentions "local with gum staining at the left edge" which is hardly of significance with such an important stamp and cover, the Caspary catalogue stated that this cover is "in exceptional condition for such a rarity and one of the outstanding local covers known", 2022 Philatelic Foundation certificate (Scott listed but unpriced)
Provenance: Count Philipp von Ferrary (Gilbert Sale 10, 1924)
Alfred H. Caspary (H.R. Harmer Sale 1071, 1957)