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Unknown

Psychology

This is a cylindrical metal object closed at one end, with another tube emerging diagonally from its base. At the base there is a flat disc to which the cylinder is attached. At the top, there are two metallic knobs, like terminals, emerging vertically. There is also a short black length of thick wire which ends in a plug with two narrow prongs or terminals.

The object is contained inside a red cardboard box, which does not appear to be related to the object.

There is a piece of beige paper in the box, reading: “180 mA 23 Hc.”

Accession Number: 2017.psy.188

Alternative Name:

Primary Materials: Cardboard, Metal, Plastic

Markings:

On the top of the object: “LEEDS & NORTHRUP CO. PHILADELPHIA 1592248 MADE IN U.S.A.”

On the side of the box: “PRESCRIPTION LABORATORY SERVICE.”

“American Optical COMPANY Canada Limited”

“Better Vision for Better Living.”

Dimensions (cm):

Box: 17cm x 9.1cm x 7.5cm Object: Height = 12.5cm, Diameter = 6cm

Function: Unknown.

Condition:

Very good. The object appears to be like new. The cardboard box shows signs of wear, particularly on the edges and at the corners.

Associated Instruments:

Manufacturer:

Leeds & Northrup Co., Philadelphia

Date of Manufacture:

Provenance:

Additional Information and References:

Historical Notes:

Themes: