This is a handwritten tanzaku (a type of Japanese poetry card) by Gojima Shigeru, a member of the Araragi school of tanka poets who was active from the Taisho to the Showa periods. It reads "The joy of walking together" in beautiful calligraphy. Gojima Shigeru was a disciple of the poet Shimaki Akahiko and was also friends with Kinoshita Rigen. He was also an economist, having studied economics at Tokyo Imperial University and served as a professor at Tokyo University of Foreign Studies and Meiji University. He and his wife, Miyoko, presided over the Risshun Tanka Society, and it is said that they had a very good relationship. "The joy of walking together" likely expresses his straightforward gratitude for his days with his wife, Miyoko. Perfect for a close friend or mentor. How about it, if you like it?