| Brand | Eugene Dietzgen Co. |
|---|---|
| Color | Tan |
| Country of Origin | United States |
Check the listing for details. Vintage 1943 Trig-Easy Compound Trigonometry Pocket Chart #1/#2 Eugene Dietzgen. Color: Tan, Condition: Used, Made in United States. Listed at 23.99 USD. Double-sided chart with the #1 and #2 equation windows and central pivot/indicator. Cardboard shows noticeable edge wear, creasing, and surface discoloration from age; text and graphics appear readable.