Sidereus Nuncius

No book-club apparatus applies to a 1610 quarto; the live tells are facsimiles and forgeries. The 1964 facsimile is the documented source of a giveaway in the De Caro forgeries: a plate reverse-engineered from a scan carried an inked blotch at the foot of the title that exists only in the facsimile's reproduction, where a brownish area had gone black. Nick Wilding's published tells for the forged copies include 'pepiodis' for 'periodis' on line 15 of the title, a backward-tilted V in VENETIIS, an ampersand whose top loop is closed up with ink, a P in 'Priuilegio' with a stray leftward stroke at the foot, and the letters p and i touching in a way letterpress cannot produce but a digital reproduction can. Both known forged copies passed through Marino Massimo De Caro.