it was ones for doing eyes. this was also in the early 1990's.
Ah, OK, I see what you are saying. Probably like a 00 size or something. Yeah, there are easier ways now-a-days though, you can even just use something like a paint pen or something rather than spending so much on a tiny brush.
In reality, if you have a good 1, you can probably do the same as you could with a 00 or smaller, but it's more about having your paint the right consistency to work with in that case.