Artifact Details Title APL typewriter ball Catalog Number 102696484 Type Physical object Description This object is an IBM Selectric typewriter ball with APL characters. The object is in an original cardboard box. "APL PLOT" is printed on the top of the object. Manufacturer International Business Machines (IBM) Identifying Numbers Other number 987 Handwritten on box Other number 988 Molded into metal underneath the top cap opening Dimensions in box: 1 3/8 in x 1 5/8 in x 1 5/8 in Category Miscellaneous/typewriter & parts Credit Courtesy of Curtis Jones Lot Number X2393.2002