Что это за монета

Could be a Hungarian denar

https://en.wikipedia.org/wiki/Gotthard_Kettler

You need reference book or source for Livonian coinage between 1561 and 1587.

I thought that ort (18 groschen, ¼ thaler) coins showed up in 16xx.

желательно чтобы почитать об этой монете

Aliaksei91

желательно чтобы почитать об этой монете

https://ru.wikipedia.org/wiki/%D0%9A%D0%B5%D1%82%D0%BB%D0%B5%D1%80,_%D0%93%D0%BE%D1%82%D1%85%D0%B0%D1%80%D0%B4

Кетлер, Готхард, Ливония

Монеты нет в каталоге.

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Based on lettering it is Livonian coin from Gotthard Kettler. It is not in numista.

First image is upside down. Year is 1560. Two last digits on coin.

непонятно чтоза металл он жёлтого цвета ноесть наросты с двух сторон как коррозия

Well. Your coin is not in the book about Livonia. Obverse got layout of silver ferding, but lettering and layout on reverse do not match Riga or Reval.

MONETA ORHTUS A . . LIVON on reverse is hard to interpret.

Dude ran Livonian Order for about two-three years. Your coin has his name and part of his title, but rest of stuff does not fit.

Looks modern to me, too perfectly round.

I would guess this could be some kind of souvenir from a museum, I have seen simmilar in Tallinn for example but of the Teutonic Order.