CC0 · no rights reserved
Drafting Pen, William J. Powell
From the collection of National Air and Space Museum. Free to download, adapt and use — no permission needed.
About this work
"Excello" brand metal drafting pen manufactured by the Eugene Dietzgen Company (Chicago, Illinois, USA) with numbered dial used to control ink line thickness.
National Air and Space Museum’s own descriptionCredit lineDrafting Pen, William J. Powell. c. 1920s-1930s. William J. Powell. National Air and Space Museum, Gift of William J. Powell, III. CC0.
