https://penzvero.hu/millennium-underground-railway-machine-tarnished-non-ferrous-collector-coin-2021/?lang=en
Millennium Underground Railway, machine tarnished non-ferrous collector coin 2021 - Magyar Pénzverő...
May 13, 2021 - Marking the 125th anniversary of the opening of the Millennium Underground Railway, the Magyar Nemzeti Bank issued a HUF 2000 non-ferrous commemorative coin
millennium undergroundnon ferrousrailwaymachinetarnished