Gorton P3-1 Used in the 2D mode to make an initial stamp.
Used with serial number as an ID mark.
The pattern was fret-sawed out of 1/8" aluminum, flipped
over to get the reverse image for tracing the stamp, and 
rivetted to a supporting backer.  Some of the spacing did
not look right, and the stem of the T was milled off & 
replaced.  In the photos, the stamp has already been hardened
and used a few times.  It is in place exactly as made, 
as a mock up.  Some of the deeper detailing and sharpening
of the corners was necessarily added by filing before hardening.