Multiplying glass in turned pearwood case, 18th century. Object glass (3 1/2inches diameter) with 40 small concave lens facets on inside, eye-lens bi-convex (2 3/8 inches diameter). Multiplying glass in turned pearwood case 1701-1800
Combination telescope, microscope, and multiplying glass, screwed together with one separate section, unsigned, Europe, 1850-1900. The broadest section has a cut-glass sense with several faces, the middle section has one magnifying lens and the smaller has a tiny magnifying lens in separate ivory holder which can be set in a hole at a right angle to the others, opposite an upright pin, which is viewed through it. This section also has another magnifying, partly frosted, lens on one end, with the cover missing. The separate part of the object has a wide lens at one end, and a pinhole one at the other. Combination telescope 1850-1900
