Accession Number: 2011.ph.513


Spherometer with box (half of box). Spherometer consists of a metal measuring disc and a ruler mounter on a tripod base. Measurements on both are metric.

Alternative Name:

Primary Materials: Metal, painted metal, cardboard.


Spherometer: “CENCO” written on disc. Box: “3360; K51; SPHEROMETER STUDENT FORM; –cient. Instr.; Central Scientific Company; SCIENTIFIC INSTRUMENTS CENCO LBORATORY SUPPLIES; CHICAGO”

Dimensions (cm): Spherometer: 7×5.5×5 Box: 8x8x8


Use dto determine the radius of curvature of concave and convex surfaces of mirrors and lenses.


Spherometer in excellent condition. Box has some tears and scratches inside and out.

Associated Instruments:

Manufacturer: Cenco

Date of Manufacture: Early to Mid-Twentieth Century


University of Toronto Physics Department.

Donated to UTSIC: No

Historical Notes:

Object was received with two additional spherometers (now numbered 2011.ph.517 and 2011.ph.518) and assorted other objects with uncertain relationships (now labelled 2011.ph.522) all together in the box.