Developed for the U.S. Army by Will Eisner.
Some early issues have "P.S. Magazine" in the indicia, many issues have "PS Magazine", and others have "PS The Preventive Maintenance Monthly".
Ends with #804 and converts to website, per
https://www.dvidshub.net/publication/1124/ps-the-preventive-maintenance-mo… "Effective 1 Nov 2019, PS will cease publication of its monthly, illustrated magazine and move to a fully-online information resource. To read PS Magazine after 1 Nov 2019, visit
www.psmagazine.army.mil. A quarterly compilation of articles appearing on its website will be made available on DVIDS."