Pocket Stereoscope

Forestry

Accession Number: 2019.for.21

Description:

This artifact consists of a small instrument kept inside a rectangular leather case. The case is orange and has a flap lid with a popper closer. The instrument consists of two round lenses held in circular metal frames connected by a pair of arms hinged between the lenses. On the outside of the lenses on each side, there are two rods that can be unfolded to allow the lenses to be stood above a flat surface.

The case may not be original to the instrument.

Primary Materials: Metal: Iron Alloy, Glass.

Markings:

Printed onto the leather case: “CASELLA
LONDON”

Written in marker on the case: “#33”
Written in pen on the interior of the case, under the flap: “8”

Embossed on the metal frame of the instrument: “RYKER
D-12 STEREO
MADE IN U.S.A.
US PATENT NO. 2,225,602”

Manufacturer: Harrison C. Ryker, Inc.

Date of Manufacture: c. 1940

Provenance:

This item was used by undergraduate forestry students at the Department of Forestry. Since then, it has been stored by the Department. It was collected in July 2019 from Tony Ung.