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WILKINS, JOHN. 1614–1672.:Mercury: or the Secret and Swift Messenger. London: Richard Baldwin, 1694.
8vo (159 x 100 mm). Engraved portrait frontispiece (on verso of advertising leaf), woodcut diagrams in text. 20th century quarter vellum and marbled boards, red morocco gilt lettering piece. Covers lightly soiled, small wormhole through first three leaves, margins closely trimmed, browning heavy in places, chipping to edges of A3, old ownership inscription on first leaf recto.
Second, posthumous edition of this work on cryptography and semiotics by the iconoclastic Wilkins. Toole Stott 732; Wing W2203.