Identifying Autopens

Autopen Patterns
Crew & Group Preprints

Identifying Autopens : Autopen Traits

2.3 Shaky/Wobbly Lines

Autopen signatures sometimes show characteristic shakes or wobbles, particularly in long strokes, that are very rare in human signatures. Although uncommon (apparently these wobbles were produced when the machine was run at high speed), if these shaky lines are present in a signature they are a good indication of a possible autopen.

The examples below show a couple of wobbles highlighted.

An Autopen signature showing wobbles in the pen strokes
Note the wobbles in the downward strokes of this autopen John Young signature
An Autopen signature showing shaky lines
A Charlie Duke autopen signature showing distinctly shaky lines in the "Jr."
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