cover 1885, three "Ballard" envelopes to Kent with 10c. and 20c. (registered) frankings tied by "S1" with type Di c.d.s. dated 1 May, with type Ei dated 3 July; also pair of 5c. tied by type Ei dated 16th December (Webb records this used as a cancellation between 6 October and 14 December 1885). Late use of the "S1" making an interesting group. (3)

Details
cover 1885, three "Ballard" envelopes to Kent with 10c. and 20c. (registered) frankings tied by "S1" with type Di c.d.s. dated 1 May, with type Ei dated 3 July; also pair of 5c. tied by type Ei dated 16th December (Webb records this used as a cancellation between 6 October and 14 December 1885). Late use of the "S1" making an interesting group. (3)