Standard brass yard, serial no. 3252, made by W. & T. Avery Ltd, 1915.

Used as a standard yard at Melbourne Observatory.

1 yard is approximately 91cm.

Physical Description

Brass yard with micrometer vernier at one end, calibrated in thousands of an inch. Inch graduations marked the full length of the standard. Item is housed in long varnished wooden box with brass plate on hinged lid.

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