£290
London. 1852-64 "Returned Paid" letter envelopes, six also with "On Her Majesty's Service" heading, lower corner with "Dead Letter Office" (5), "Returned Letter Branch / Circulation Department", "General Post Office" or "Returned Letter Branch / General Post Office" (5), blue or white paper. All with a printed explanation and caution under the flap, the Secretary shown as W.L Maberley (2), Rowland Hill (9, one with a label over Maberley's name) or John Tilley, three with enclosed letters. (12+).
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