Have you ever seen a fan shroud on a 1974 Duster?

Hi Guys: The factory correct radiator for my 1974 Duster (225 auto non-a/c) is part number 3692973, which I have in my car. I noticed that there are four holes for what appear to be a fan shroud on the engine side of the radiator housing (see photos). These holes are 18.5 inches across horizontally and 15 inches apart vertically. Does this mean this radiator can accommodate a fan shroud? I've never seen one, but my factory parts manual says that there is one for this radiator, p/n 3691920....

Have you ever seen a fan shroud on a 1974 Duster?
Author: Cruiser