Some of the best handmade paper in the world - Washi.  The label indicates it is from the Washi Ushiroku Trading Co. in Kyoto, Japan.  Item no. 6102.  However since it’s vintage I could find nothing similar online,  The back label called indicates “Bound Writing Pad Unlined” and the item is still wrapped (new). Blue cover and natural pages inside.  Seven inches wide and slightly under 10 inches long.