I've noticed a variety of colors on these cards.
Green was the most common but have seen gold, blue and red. No one selling these seems to acknowledge the variants. Is it just an optical illusion?

I'm told the variations are due the the manufacturing process and not intentional.

But to deny they exist would be silly. But it's all a matter of opinion when people start talking about which ones are the more rare.

And, they are notoriously hard to film, so pictures can be deceiving.

Ed

Thanks Ed,
It seems that the green is most common with blue being a close variable of it. Gold is pretty noticeable as a variation with red possibly being an offshoot from it and even less common.