Cult of Tarot Forum

Does anyone here know when the first printrun of cards of the blue owl pattern occurred?
For the Dondorf, we have around 1875; the Brepols is either 1901 or 1910;
What about the Blue Owl?

I don't know. Honestly, I doubt any of the usual suspects here do, except for maybe @Tag Jorrit , but she's not around too much. There's a user named Kali over at the Cartomancy Forum who is likely to have an answer.