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
Primary Materials: Cardboard, Metal, Plastic
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.”
Box: 17cm x 9.1cm x 7.5cm Object: Height = 12.5cm, Diameter = 6cm
Very good. The object appears to be like new. The cardboard box shows signs of wear, particularly on the edges and at the corners.
Leeds & Northrup Co., Philadelphia
Date of Manufacture:
Additional Information and References: