The jaws of the caliper are spread apart 11.15 mm (7/16″), as shown by the following annotated photo.

08 MAR 2021 | Bog Photo Studio | analog Vernier caliper (close-up)
As it turns out, I used the calipers to measure the diameter of the barrel of a brass spigot used for photography clamps.

Product image courtesy B&H Photo.
Related Resource: Tools of the trade: Vernier calipers.
Copyright © 2021 Walter Sanford. All rights reserved.
Tags: BoG Photo Studio, gear talk
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