I need help identifying this Hungarian Denar of Matthias II [solved]

I need help identifying and getting more information about this Hungarian Denar of Matthias II.

The lettering:

Observe - MAT D G RO I S A G E HV B R

Reverse - PATRO HVNG 1618

Can somebody help me find more information about it?

N#28248

Other Hungarian denars do not fit 1618 in Standard catalogue of world coins.

Ok , thank you! But as you said, the lettering may vary?

Weight varies between 0.32-0.76 grams in KM 40.1. That probably tells about period quality standards or reminds about ongoing war.

If you need more details of lettering variants, you would need dedicated Hungarian source. Coin page gives more possible sources than just KM.