"A Bogy Unveiled: an examination and refutation of the... charge that the abuse of the postal privileges accorded second-class mail matter... is responsible in whole or in part, for the recurring annual deficits in the revenues of the P. O. Department" - prepared by publishers to answer charges that they are abusers [48pp.], booklet, Item 4, Box: 11. John Springer Printing Ephemera Collection, MsC0202. University of Iowa Special Collections. https://aspace.lib.uiowa.edu/repositories/2/archival_objects/56659 Accessed February 10, 2025.