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Collection of pages from K&E catalogs for the 4055 family

Description:

The 4055 family of slide rules is of the Mannheim type and named "Favorite". The 4055s were constructed on a mahogany frame with celluloid laminated to the surface. The markings are engine divided.

The 4055 was intended to be a version of the 4041 without the inch and centimeter scales on the top and bottom edges.

History:

The 4055 was first released in the 1927 catalog. The last mention of the 4055 is in the 1943 catalog. The following is a brief history of the 4056 family of slide rules 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.

Catalog page from the 1927 catalog

• 1927a - The 4055 was first shown in the 1927 soft bound catalog.
• 1936 -- The "improved metal framed" cursor was introduced.
• 1943 -- The 4055 was last shown in the 1943 catalog

Links to catalog pages for the 4055 family of slide rules:

• 1927a 1927b 1928 1930 1931 1932 1933 1933Edu 1934
• 1936 1936Edu 1937 1939 1941 1942 1943

Scans: Scans of 4055 Family of Slide Rules