antique brass beam or scribe compass, old drafting tool

antique brass beam or scribe compass, old drafting tool
antique brass beam or scribe compass, old drafting tool

Antique solid brass carriage for a large beam or trammel compass. This is made to use a wood or brass beam and is either the pivot point or the scribe end for laying out a curves and circles. This compass head measures about 3 1/2" long overall. The iron compass spike measures about 7/8" long and over 1/8" across at the base. This is made for a beam that measures about 3/4" to 7/8" (this is adjustable with the clamping screw) and 1/4" thick.

This has a lovely patina of age.

item #w51890
SOLD