That's it, that's basically how it works Kirk,
well done you,
yes the old plakky Spiro Graph indeed.
offset cam idea.
I'd still love to get the inside "nuts and bolts" info
on how it was done practically.
To reach that degree of finess in something as small as
a postage stamp is near on unbelievable.
I remember (hazily) when I was a hippy in London
in the seventies, there used to be these guys on the sidewalk
with black kraft paper and scissors, and they would cut your profile out in minutes, the size of a packet of cigarettes.
(nothing to do with stamps, just thought I would tell you)
