Skull & Crossbones, Type 3, Rohloff R-3, choice strike ties 3c ultramarine to cover to Washington, Connecticut, "Waterbury CT / Feb / 10" c.d.s. alongside, docketing dated 1870 at upper left, not detracting from the incredible appeal of this exceptional and detailed strike, a superb cover; with 2022 Philatelic Foundation certificate.