= Antique 18th c. Calibrator Compass Wrought Iron Tool for Science or Masonry

Description

Antique 18th c. Calibrator Compass Wrought Iron Tool for Science or Masonry
For your consideration is an early measuring tool
It is a blacksmith made wrought iron compass or calibrator
Most likely used in masonry, but could've been in some scientific way
Circa 18th century
All original
Measurements:
Approx. 6.25" x 1.5" x 0.25"
Condition:
Very Good overall.
Please see
photos below. All original.  Oxidation consistent with the age, it is stuck, we have not been willing to force it, possibly will easily become flexible with WT-40 or similar
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