Citadel launched the C02 series, dedicated to Wizards, in 1983, and regularly expanded it. This piece is marked with the year 1985 but the first leaflet I found, in which this figure appears, is dated 1987 and here the wizard goes by the exotic name of Dostovius Hillmage. It's a very simple sculpt but I like it - it's essential. This wizard has a large beard, and long robe, a staff and a pointed finger as if casting a spell. You don't really need much else, do you?
A belt pouch for reagents, perhaps, yes. I wasn't able to find out the sculptor and I would guess one of the Morrison siblings.
I painted in a simple way as well. Didn't even attempt to do the eyes, even though they were very large. The robes are a dark blue, the hair brown wood, the belt brown leather. The twin-headed aquila belt buckle was painted a dark bronze. The skin pale, as befits one dedicated to the study of arcane arts.