Artifact Details Title Sigma timing simulator Catalog Number 102635103 Type Document Description Stretch simulation memos : IBM 7030 performance Date 1958-02-17 Author Pendery, D.W. Contributor Kolsky, Harwood G. Extent 1 p. Category Memoranda Subject IBM Project Stretch Credit Gift of Harwood G. Kolsky Lot Number X3021.2005 102635103.pdf