1670-75, London "Franches" Foreign Branch Handstamp.
Three folded letters from London to Livorno, each with "Franches" circular handstamp applied by Foreign Branch of London Post Office, incl. Ty. 2 handstamp on two 1670 letters (Christie's Robson Lowe 10/30/1984 sale, lots 579 ex and 580) and clear strike of Ty. 6 on 1675 letter (same sale, lot 583), two have seals intact (one with cord), some faint stains (possibly from disinfection), otherwise Fine, desirable and scarce early foreign-mail markings of Great Britain
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