Diameter/Circumference Tape Measure
Accession Number: 2019.for.19
This object is a retractable tape measure in a leather circular case. The tape measure is metal, marked in inches and feet, and divided in tenths of inches. On one side of the tape measure is a standard measure. The other side directly calculates the diameter of a circular object, such as a tree, from the measurement of its circumference. The tape ends in a silver hook with a sharp end.
On one of the flat sides, there is a metal latch with a knob attached that can be opened and closed to enable locking of the tape measure in place. On the other side, a rotating metal mechanism is visible in the centre of a metal plate fixed into the leather. This can be used to rewind the tape measure into the case.
Primary Materials: Leather, Metal: Iron Alloy.
On a metal plate fixed to one side of the case: “STEVENS-WYTEFACE”
“KEUFFEL & ESSER CO.
Scratched into the edge of the plate on the other side: “UT-F 16”
Printed at the beginning of the tape measure: “DIAMETER EQUIVALENTS OF CIRCUMFERENCE IN TERMS OF INCHES AND TENTHS OF INCHES.”
Printed on the other side of the measure: “TENTH” “K & E”
Dimensions (cm): Diameter = 8, Height = 1.8.
To enable easy and quick estimation of a tree’s diameter through the measurement of its circumference.
Fair: The tape measure has seen significant use. The metal plates on both sides are rusty, and there are rust marks across the plates and leather cover surface. The measure itself is marked with dark striations along its length, particularly on the diameter equivalent side of the measure.
Manufacturer: Keuffel & Esser, New York
Date of Manufacture: Late 1930s-1940s
Department of Forestry. This object was likely used by undergraduate students in-field training.