1 groschen 1936, Österreich

1 groschen with strange white nickel-like plating. Мaybe someone has met something like this.
I don't understand why they did it. W=1.60 g.



Perhaps this is the official coinage?

all coins on the internet are bronze coated

Electrolysis, probably done by school children or their teacher.

Thank you

When we were young, we used to rub quicksilver (Hg, available over the counter! ) onto "yellow" coins, making them shiny "silver". Good thing we didn't know how poisonous the liquid metal was 🤣