Great Britain 1793 Southampton Forwarding Agent Cover to GuernseyGreat Britain 1793 (7th May) Southampton Forwarding Agent Cover to Guernsey with 1d Charge. The cover was sent the year before the Channel Islands Post Offices opened and is therefore without postal markings. The endorsement indicates the Southampton forwarding agent's 1d pre PO unofficial charge. Sent on 7 May 1793 from "H. L. M" (in London?) to T. de Sausmarez in "Guernsey" with a clear "Forw[arde]d p[er] P. Le Feuvre. 1d" endorsement on flap. A