Ian McLean wrote:

> As I said, I think it is Gray Code.

Hey, that's a better guess than "Pixelized Rorschach Inkblot"! :)

I've seen these codes on some consumer products.

The JPEG (I Freudian slipped and called it a GIF for some reason) I posted
is an excerpt from the back of my Massachusetts Driver's License.
Interesting visual pattern.

Regards,

Ken Pergola

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