Converging lens by “P.J. Kipp en Zn, Delft”.
A converging lens in mahogany standaard and is signed by P.J. Kipp en Zn – Delft, Circa 1880-1890. The 7 cm diameter lens is a hollow plano-convex lens is mounted on a wooden base with a telescope construction. The base has a lead ring to make the stand heavier. 34 cm high and in good condition.