»2 ˝ in. Gregorian Reflecting Telescope«, c. 1790
By B.E. van der Bildt (Franeker, Netherlands, son of Jan van der Bildt). Brass ocular. Overall length 17 in., height 14 ˝ in. - Perfectly working!
Estimate: € 600/1,000
US$ 720/1,200
Reserve: € 450/US$ 540