Watch List notes:

BELGIUM: 50 Francs (1958) in silver (0,835) commemorating Brussels World Fair with head of Baudouin facing left within circle, legend in French. World Fair, steeple divides date from denomination. Coin alignment. Inside slab by NGC "MS 66 / WORLDS FAIR - FRENCH / COIN ALIGNMENT". Cert number: 5779751-018. (KM 150.1).