It's not difficult but i don't find anything like this

Didoni  Vorgeschlagen von rocamaco 

Reminds me Bodoni (Poster or black/bold)

it's more rounded of bodoni but it's very similar...

Didoni is similar at Eloquent

And "Pistilli Roman" too...

Pistilli Roman is a typeface collaboratively designed by Herb Lubalin and John Pistilli.(1963)

In 1969, Phil Martin, produced a Pistilli Roman replica with many of the same swashes and alternate characters named Didoni. The difference being that Didoni had hairline strokes that were typically thicker by a small percentage.

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Pistilli Roman, Pistilli Roman Bold, Pistilli Roman Black, Pistilli Roman Open No.1 & Pistilli Roman Open No.2

(http://www.dafont.com/forum/read/12924/quelle-est-cette-typo)...

The hairline strokes