Collection of pages from K&E catalogs for the 4128

Nordell Sewer Slide Rule


The catalog page from 1911

The Nordel Sewer Slide Rule is 20" long duplex slide rule with celluloid on a wood frame. The scales are engine divided and designed for sewer flow design calculations. The first issue of the rule had a clam shell cursor.

Model numbers in the group:


The 4128 was first shown in the 1911 slide rule only catalog. The last mention of the 4128 is in the 1922 catalog. The following is a brief history of the Nordell Sewer Slide Rule as is told in the K&E catalogs that are available at this time. Exact timing is not possible because of the time between catalogs.

Links to catalog pages for the 4128 family of slide rules: