Top edge: 0-6 inches (Slanted)
Bottom edge: 0-1-17.5 cm (Vertical)
Back of slide:[S, L, T]
Back of rule:
This page is from the 1936 (18th Edition) Post Catalog
The term "Universal" is new and seems to be Post's term for its best
products.
| 2
Top edge: 0-6 inches (Slanted) Bottom edge: 0-1-17.5 cm (Vertical) Back of slide:[S, L, T] Back of rule: |
This page is from the 1936 (18th Edition) Post Catalog
|
| Catalog describes this rules as "5-inch" but scales are actually 15 cm (6 inches) long |