Artifact Details Title IBM 1620 Subroutines: Preliminary Specifications Catalog Number 102629013 Type Document Date 1960-02 Publisher International Business Machines Corporation (IBM) Identifying Numbers Publication number J26-4203 Extent 20 p. Category Manual Collection Title 1620 Restoration Project Collection Credit Gift of Dave Babcock Lot Number X4253.2008 102629013-05-01-acc.pdf