Historical information

Foresters usually measure the diameter of trees at Breast Height – traditionally 4 foot, 6 inches – now 1.3 m – which is termed Diameter Breast Height Over Bark (DBHOB).
The most common way to measure tree diameter is to place a calibrated tape around the stem at breast height. It’s simple, but can be slow, particularly if the scrub is thick, or if there are heaps of trees.
A tree caliper is another quick method of estimating DBHOB.

Physical description

Wooden tree measuring calipers

Inscriptions & markings

Measurements are in inches (pre metrication in 1974)
A crown faint crown mark (331) and crows foot is visible on one end