Collection of pages from K&E catalogs for the 4018 K&E Pocket Calculator
The K&E Pocket Calculator was marketed by K&E.
Catalog page from the 1909 catalog
The following is a list of catalog entries from 1909 to 1927.
- 1909 --- The 4018 was first shown in the 1909 catalog.
- 1927a -- The 4027 was last shown in the 1927 soft bound catalog
Links to catalog pages for the 4018 family of slide rules:
Scans: Link to scans of the 4018