Catalogued
Z chart (zee chart)
- Made by
- No single inventor documented; described by Karsten
- Year
- 1925
- Field
- Management and industry
- Kind
- Data display
- Room
- Change over time — Placed by reading its description, not yet studied
17 other forms share this skeleton
Source
Karsten 1925, Charts and Graphs, pp.228-234
Attribution less certain: contested, or no single inventor recorded