Here is the article from 2019.
Edmond Emile LINDAUER, a prolific engraver and artist
https://numismag.com/en/2019/11/24/edmond-emile-lindauer-a-prolific-engraver-and-artist/
The tokens can be found here on Numista:
I don't know whether the article includes adequate proof of its claim, but I do not wish to spend time finding out.
Maybe somebody else would care to look into it.
I do not collect tokens, but I enjoy seeing attractive animal designs.