cover 1879 (15 Jan.) envelope from Providence, R.I. to Commander John R. Bartlett aboard S.S. "Blake", St. Thomas and redirected to St. Vincent, routed "Via Bermuda per Steamer Carminia", the envelope is franked with 10c. brown tied by a cork h.s. with despatch c.d.s. alongside and various tax notations; also 1878 (18 Dec.) and (20 Dec.) envelopes ex the same correspondence from Philadelphia and New York with different 10c. frankings, the former with defective adhesives, the latter redirected to St. Vincent