A drawing in this manual shows the same scales that are on this slide rule. Although the model is advertised in Dietzgen's 1953–1954 catalog, the log and K scales are arranged very differently from ...

Dietzgen ceased the production of slide rules around 1972. The arrangement of scales corresponds to those depicted in a 1960 instruction manual for the "Dietzgen Decimal Trig Type Log Log Slide Rule," ...