Below is an image showing both sides of Jim Follis' Excalibur 4th Anniversary chip. When Jim first posted the chip, I commented that I thought it wasn't due to fading from light. Upon examination of the chip - I stand by that statement and further state that in my opinion it is indeed an error!

As seen in the insert images below, the printings of the two sides are different. On the "normal" side, there are white dots - I'm assuming that this is white paper, as it is difficult to print colors on a non-white background and have them 'look' right. Also the amount of red printed on the "yellow" side is either lighter - or not there at all.

I've shown this chip to Walter Dirzulaitis. I'll let Walter chime in and post what he thinks.
The chip is currently with Gene Trimble, and I'll also let Gene post what he thinks of the chip as well...

NICE CHIP JIM!!!

Regards,

Dick