Artifact Details Title DPM comparison system Catalog Number 102633960 Type Document Description Illustrated Date May 7, 1957 Author English, W.R. Contributor Pendery, D.W. Extent 11 p. Dimensions p. 6 is 12 x 18 in. Category Memoranda Subject IBM Project Stretch Credit Gift of Harwood G. Kolsky Lot Number X3021.2005 102633960.pdf