Waterpumps with smooth pulleys

[3W Hank]

Somwhere I seen as I thought was 59BA single pulley pumps with steel instead of cast iron.
-What car came this pumps from ?
Another question, in that era to 1950 was it only one type of belt or had they wider and narrow ?
Read Drake has wider or narrow.
Maybe the narrow is a ’modern’ V-belt type.
-I ask since I has a clearance issue but my crank pulley is std and so generator pulley.