Maruzen bookstore

Check out 3rd floor of Maruzen Bookstore near Tokyo Station (from Yaesu entrance, toward Nihombashi area). They sell books and materials from around hundred years ago (or more).  It's just interesting to see all the books displayed. Maruzen is one of the largest bookstore company. In addition to books, Maruzen sore in Yaesu area sell fountain pen from various brands (1st basement). 
Maruzen (offficial website): http://www.maruzen.co.jp/corp/en/