Circles, pipes and piping, illustration Circles, pipes and piping, illustration. From Mechanical drafting by Henry Willard Miller, Illinois University 1917., by PHOTOSTOCKISRAELSCIENCE PHOTO LIBRARY Stock Photo - Afloimages
Circles, pipes and piping, illustration. From 'Mechanical drafting' by Henry Willard Miller, Illinois University (1917)., by PHOTOSTOCK-ISRAEL/SCIENCE PHOTO LIBRARY