1920s Investigator's Companion Vol. I (CHA2343) 1993
Publisher: Chaosium
Systems: Call of Cthulhu (Classic)
Authors: Keith Herber
Contents
| Title | Pages | Author | System | |
|---|---|---|---|---|
 The Roaring Twenties | 8-17 | Keith Herber | Call of Cthulhu (Classic) | (See Also) |
| Research & Resources | 18-27 | Keith Herber | Call of Cthulhu (Classic) | |
| Transport & Travel | 28-44 | Keith Herber | Call of Cthulhu (Classic) | |
| Equipment & Arms | 45-64 | Keith Herber | Call of Cthulhu (Classic) |
Groups: 
1920s Investigator's Companion
Links: 
Call of Cthulhu Collector's List (p4), 
Drive Thru RPG, 
RPG Geek, 
RPG.net, 
Yog-Sothoth