What is the color?

At XI, a very popular position came to our offer, especially by admirers of all color tests and curiosities related to the emissions of the PRL period.

I remember when I was on the "collector" side I bought a substantial set of 7 pieces for my collection! Each with a denomination of PLN 100, each with a different color, but none gave birth to problems with color identification.

Describing the attempt to us for the Auction XI, I had a real problem, but it is not known for a long time that the color palette in the Men's Day is calling things gently - poor.

If the obverse can easily be determined by the green, the reverse creates problems?

Pink, red, brown or maybe orange?

I miss a nice color definition here, even those that I use in my catalog Czesław Miłczak, which I carefully pick up to auction descriptions (lilac, Jasnoorch ...)

https://snmw.onebid.pl/.../banknoty-100-zlotych..../1529846