Ruling Pen with Clamp Small 102×320 Medium 205×640 Large 327×1024 Download Tiff Original 767×2400 | (183.5 KB) Description A ruling pen with clamp for easy cleaning. Ruling pens are useful in drawing with ink. Keywords clamp ruling pen, pen, pen with clamp, pens, Ruling Pen with Clamp, ruling pens Galleries Mechanical Drawing Tools Source: French, Thomas E A Manual of Engineering Drawing for Students and Draftsmen (New York, NY: McGraw-Hill, 1911)
