"Shoo Fly", Waterbury, Connecticut, Rohloff M-2, superb strike on 3c ultramarine, tied to cover, alongside "Waterbury CT / Jun / 24" c.d.s., to Hartford, Connecticut, roughly opened along top, reverse with hinge repairs, adhesive with toned perfs, yet a choice strike of this rare and whimsical cancellation, Rohloff records fewer than five examples on cover, while the Crowe census reports only three such examples; ex Knapp, Dr. Backson, Dr. John Robertson (1994), illustrated in Hahn's "the Cancellations of Waterbury."