mostly-complete strike just ties 1861 3c Rose (65, natural straightedge at right), matching "Waterbury Con Sep 17 '67" double circle datestamp alongside, on cover to Blackstone, Massachusetts, very fine, Rohloff rarity "RRRR" with the unpublished Crowe census recording only four covers with this cancellation (all used between September 16 and 17, 1867), 2022 William T. Crowe certificateProvenance: John R. Boker, Jr.