Lot of 4 Vintage Industrial Slide Rule Calculators Hays Hoke Daniel Pittsburgh

Description

Lot of 4 as shown
* 1961 Daniel Orifice Fitting Company
* 1967 Hays Corp. Michigan City Indiana
* 1964 Hoke Inc. Cresskill New Jersey
* 1957 Pittsburgh Piping & Equipment Co.
Nice vintage condition with just some light wear
Smoke free
Please contact me with any questions. Thanks for looking!