| Brand | American Stamping & Manufacturing Co. |
|---|---|
| Country of Origin | United States |
Check the listing for details. VTG Drafting Tool Design Standard Chart Promo Advertising Table Formula American. Condition: Used, Made in United States. Listed at 14.99 USD. Table for finding the developed length of dural, c.r.s. with 90 degree bends. Tool Design Standard Book.