All About Pocket Knives

I would appreciate help ID'ing this knife that I found at a local Yard Sale.
I haven't cleaned it yet, it's in pretty rough condition but hey it's the second one I've found in as many weeks.
I'm interested in the age and what company made this one, the quality isn't as good as the Latama I posted last week. Thanks, I'll post photos below.

late 50s early 60s Italian would be my guess . neat that its a picklock with that swedge style blade mostly seen on the swivel bolster type you have good yard sales .

Thanks, whats the rules for cleaning, minimal polish?
I think the bolsters and guards would look much better polished.
The horn scales are in pretty rough condition but no cracks, can they also be polished?
I've been going to Yard Sales for 40 yrs and I never once saw a switchblade, now 2 in 2 weeks...amazing.
Wanna bet I'm going out next weekend?

Most all the parts on the knife could be polished but some collectors frown on it .... to each his/her own is my feeling on it .