I found a Polymerbit 1/10 ETH on ebay before the test edition was released on the website.
These are the two 1/10 ETH we can find on the Polymerbit website
We can see that the final edition (numbered) is a little bit more lighter than the test edition (unumbered). Also if you look closely on the vertical line before "BANK OF POLYMERBIT", you can see "Bitcoin 2017 document" on the final edition, and "Ethereum 2017 document" on the test edition.
And this is the Ebay Polymerbit I received
It is unumbered, and a lot lighter than the test edition. Also there is "Bitcoin 2017 document" on the vertical line, like on the final edition.
This Polymerbit came without hologram, it was shipped from UK. Paper quality is the same.
Is it a polymerbit error ? Thanks