Not sure on the rear ends but not many manufacturers use their own, i.e. you have to order quite a large number to get your name cast on them. I'm suspicious, SL tubing would suggest 1980s, as would the external routing for the rear brake cable so you'd expect 126 mm rear spacing.
I don't think it's a Montello as that used SLX tubing to the best of my knowledge. I think the Treviso was made from SL tubing.
Not sure on the rear ends but not many manufacturers use their own, i.e. you have to order quite a large number to get your name cast on them. I'm suspicious, SL tubing would suggest 1980s, as would the external routing for the rear brake cable so you'd expect 126 mm rear spacing.
I don't think it's a Montello as that used SLX tubing to the best of my knowledge. I think the Treviso was made from SL tubing.