MacManus, M. J., & O'Brien, W. (1935). Letter from M. J. MacManus to William O'Brien thanking him two A.E. pamphlets for the bibliography, informing him he found both very intersting, and assuring him he will return them in a few days as he is aware the copies are unique.

MacManus, M. J., and William O'Brien. Letter from M. J. MacManus to William O'Brien Thanking Him Two A.E. Pamphlets for the Bibliography, Informing Him He Found Both Very Intersting, and Assuring Him He Will Return Them in a Few Days as He Is Aware the Copies Are Unique. 1935.