18th century Telescopes
Top Telescope: Late 18th century four draw telescope with shagreen body over pasteboard and brass fittings, unsigned. Objective diameter 1 1/4″, closed length approximately 12″, open 40″.
2nd from top: Three draw telescope, single lens objective, signed Leonardo Semitecolo, worked in Venice as early as 1756. Objective diameter 1 1/2″, 12″ closed, open 33″.
3rd from top: Late 18th century four draw telescope with shagreen body signed DOLLOND, LONDON. Objective diameter 1 3/8″, closed length 12″, open 42″
Bottom telescope: Mahogany, single draw reverse taper telescope, signed on sliding lens cover, DOLLOND London, circa 1760. Objective approximately 1″, closed length 26″.