Here is an interesting plaque from Swaziland that I will be submitting to the ChipGuide.
It is about 2.5 inches by 3.5 inches with three lunettes (translucent circles) in the center.
It has a different serial number on each side, which I have never seen. The photos are of the same plaque, each side shown.
Has anyone else seen different serial numbers on one item?
Thanks for looking.