BGA OCB GeoCoin – TAG 133/170 loading map - please wait...Map could not be loaded - please enable Javascript!→ more information BGA OCB GeoCoin - TAG 133/170 48.635000, -1.510700 Can be traded at the event \"Welcome To Belgium\" for an OCB Tin GeoCoin for only 4 Euro. Coordinates: N48° 38.100 W001° 30.642. Click here to view more details about this tag. Coordinates: N48° 38.100 W001° 30.642. Hint: mayor’s wall.