>> How could contemporary designer, especial typographer use historic elements
Although not as literal as your example; alot of modern typefaces have a historic element to them, actually. Especially alot of serif faces. A large portion of them have influences that come from a certain historic typeface. Be it Jannon, Garamond, Fell, Baskerville -- to give a few examples -- or just a more generic style such as 'Dutch', 'English', 'Didone', etc. Either as a revival, or just as an influence. I think this is the main historical element that is used in modern typography/type design.
Why care? I think because typography and type design are crafts that have a very significant and long history behind them, so there is alot of work that can inspire modern type designers.