_John Hill's Penny Post, in_ 1659.--I noted a few years back, from a
bookseller's catalogue, the title of a work--
"Hill (John), a Penny-Post; or a vindication of the liberty of every
Englishman in carrying Merchants' and other Men's letters against any
restraints of farmers of such employments. 4to. 1659."
Can any of your correspondents give an account of this work?