Restoration Poster

[Alexander74]

Please suggest where you can refurbish Russian poster? Tears , creases and all that is connected with not professional storage. Poster 1915 , the same was exhibited at the exhibition in the Tretyakov Gallery of Russian Posters in 2012 , the author V.Vasnetsov . Whether or not to bother with the restoration ? Is it worth it " game worth the candle ?" Interest only investment question , I plan to sell. Photos of the poster enclose my worst condition.
V.Vasnetsov . Poster " Helping families Bogatyrs . Exhibition of paintings by Russian artists old and new schools. " 1915 . Trading house lithographic Genegar and K °. lithography