New online: Mailing envelope designed for the Readers Club Posted on March 9, 2017 by Sarah Severson From Rare Books & Special Collections – Colgate Collection. Colgate Dwiggins Coll. I. Mailing envelope designed by W.A. (William Addison) Dwiggins (1880-1956) for the Readers Club. 1941. 17 x 24 cm Addressed to Major M. Baker, New Jersey.