ok..late for work....but...

Here is a picture next to yellow...with direct sunlight creeping through window.

here is a tiny MC stamped on the "orange" chip. They are only on one side of the chip , not the other. You almost need a magnifying glass to see them. One at 3 o'clock and one at 9 o'clock.(they are not perfectly aligned, but close) They looked to be hot stamped in... not printed. This doesn't appear on the green chip.