the Bolzano...

[Major Adler]

why is it in the historic fleet listing in the rule book...that the Bolzano is listed as the only ship in it's class?...were not there 3 ships in that class?...

[TheFoeHammer]

why is it in the historic fleet listing in the rule book...that the Bolzano is listed as the only ship in it's class?...were not there 3 ships in that class?...

Trento and Trieste were apparently built earlier and were quite a bit different.

From Wikipedia

Bolzano was built a year later than the other two, with enough differences that she is sometimes considered a separate class. She also served in most of the same missions, and was also damaged by a torpedo in mid-1943. She was undergoing repairs in La Spezia in September, when the Italians exited the war, and was taken over by the Germans. However the damage was bad enough that they did not bother to repair her. She was sunk in a raid by Italian human torpedoes on 22 June 1944. After the war she was refloated and sold for scrap in 1947.

[Major Adler]

so it looks like we need the Zara in the next set...

[Rokossovsky]

No, there were not. Bolzano was one of a kind. (So was Exeter, although the earlier York was similar in configuration.)

Trieste and Trento were the earliest Italian heavy cruisers.

Zara, Fiume, Gorizia, and Pola were slightly more armored and much slower. It was Zara, Fiume, and Pola which were sunk in the Battle of Matapan in March 1941. Pola had a filled in bridge much like Bolzano's.

All these ships had the typical, classical WW2 gun configuration: four 2-gun turrets.

[TheFoeHammer]

so it looks like we need the Zara in the next set...

Four ships. That will be nice.