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It is often desirable to take the tracing of the outline of a patient's limbs for purposes of record, or for the use of the brace-maker. To carry the pencil in the hand in an absolutely vertical position, or with a uniform inclination, is impossible; the result of the attempt is an inaccurate and unsatisfactory outline. The device shown in the illustration makes it possible to obtain an accurate tracing, as the pencil-point is always in the vertical plane of the contour of the limb.
72 Madison Street.
RIDLON J. A PENCIL-HOLDER FOR TRACING OUTLINES OF LIMBS. JAMA. 1910;LIV(17):1370. doi:10.1001/jama.1910.92550430001001i