AN EARLY POCKET TELESCOPE
English, early to mid-18th century
Beautifully constructed of very dense turned lignum vitae wood, with brass lens cells and dust slide at the eye end, this Galilean telescope measures 16.5cm (6 ½ ”) overall with a 1 1/8” diameter objective.
It focuses, and separates, by wood threads in the center.
A handsome, well-proportioned design, in very fine condition throughout.
Lit. Louwman coll. p. 150; John Yarwell trade card (1683).
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Alpha Et Omega
Alpha et Omega is a recently established firm, based in Milan, Italy. We specialise in antique Scientific Instruments and rare Books to supply collections worldwide. Focus is given to optical and time-related instruments, especially before the Industrial Revolution but we are also interested in rare-to-find scientific and natural items and wunderkammer objects. Alpha et Omega also deals in rare books related to Early Science and Scientific Instruments. Please feel free to contact us for individual requests or desiderata.