Name/Title
Slide Rule, conversion tableEntry/Object ID
1000.223.3Description
Rule, slide, conversion tableMade/Created
Manufacturer
Richardson's Rule WorksDate made
1912Notes
where made: Chicago, IL
model name: Richardson s logometric slideGeneral Notes
Note
Pantocrat Slide, pat 1/31/11, 3/26/12, removable slide to convert to conversion table, in brown case.