Catalogued
Bead map
- Made by
- American sales and statistical practice; described by Brinton and Karsten
- Year
- 1914-1923
- Field
- Physical objects
- Kind
- Physical object
- Room
- Places — Placed by reading its description, not yet studied
8 other forms share this skeleton
Source
Karsten 1923, Charts and Graphs, p.666-667
Attribution less certain: contested, or no single inventor recorded