General Research Division, The New York Public Library. ‘An illustration of writing brushes’ The New York Public Library Digital Collections. 1908. https://digitalcollections.nypl.org/items/07caacb0-c6cc-012f-af8d-58d385a7bc34
General Research Division, The New York Public Library. ‘An illustration of writing brushes’ The New York Public Library Digital Collections. 1908. https://digitalcollections.nypl.org/items/07caacb0-c6cc-012f-af8d-58d385a7bc34