681.6
R888R
           Roy, Sovan
               Radhika Nath Saha Unsung hero of Indian Fountain Pen \ Sovan Roy - Kolkata : Inked Happiness , 2019.
                160p. 23cm.
                Author digs out history of science to unravel contributions of a forgotten inventor and start-up entrepreneur of colonial Benares

                ISBN: 9789389209310

156741
C21946
                Subjects: FOUNTAIN PEN.