Artifact Details Title File protection on the H.S. disk file Catalog Number 102632700 Type Document Date July 1, 1957 Author Howard, P.H.; Gibson, Jack C. Contributor Lyon, J.R. Ulrich, R.P. Extent 2 p. Category Memoranda Subject IBM Project Stretch Credit Gift of Harwood G. Kolsky Lot Number X3021.2005 102632700.pdf