Page:The practical designer (Rosenfeld, 1918).djvu/49

There was a problem when proofreading this page.

43

I. ROSENFELD'S SYSTEM

(Improve this image)

Retrieved from "https://en.wikisource.org/w/index.php?title=Page:The_practical_designer_(Rosenfeld,_1918).djvu/49&oldid=6482448"