This Bianchi I got free from a relative. 10 gears. I wonder what year and model of the bike?

Picture of the bike here:
http://s5.postimg.org/8drm808pj/Bianchi_brown.jpg

The derailleur on the ride is Campagnolo Nuovo Valentino Extra:

http://www.disraeligears.co.uk/Site/...1-filtered.jpg

The label under the handlebars, is “Eddardo Bianchi”.
On the trailing arm, it says "Touriste," on the other side "3 ttt Italy".
On the frame, it is also "tubi bianchi calibrati 1-20".