There won't be breaker points in a 1991 Uno 60S, unless something went horribly wrong at the assembly lines
I think it will be a Magnetti Marelli distributor - the electronic breakerless ones all seem to be.
The only time I've seen a Ducellier distributor is on the 1984 Uno 70S that jjhepburn recently bought.
I owned a 1986 Uno 60 once, which had the breakerless distributor. I believe it was the first year they were so-equipped.
The Magnetti-Marelli logo (oval shape) should appear on the side of distributor, near the finned aluminium module which is the obvious giveaway of it being a breakerless type.
Louie's 1988 Bianca 45S had a Ducellier distributor fitted, which confused me when we were working on it! Saying that, it's the only Uno I've worked on with one fitted.
Alex is right, as from 1986 (ish) onwards all Unos, with possibly the exception of the base model 45 with the OHV engine, were fitted with electronic distributors. A 1991 1108cc FIRE engine will definitely have an electronic dizzy
I would have thought it would be Magnetti Marelli, but maybe the mk2's used Ducelliers?