Original ink and pencil drawing, green and black, modern, abstract, geometric circles, looping, swirling. It is hand drawn and signed by me. "Green Circle Abstract" Green ink, black ink, green colored pencil, and 3H, F, 3B graphite pencils create an abstract swirl of lacy circles. Dozens of patterns melange together in a whirling motion of circles, the different color ink and graphite creates a wonderful depth and dimension. Size: Drawing is 9"x11" (22.8x28cm) on 11"x14" (28x35.5cm) Strathmore Bristol Board. ABOUT MY DRAWINGS: Parametric Drawing is what I call my math and geometry inspired ink drawings. I create these drawings using gears of my own design. Since childhood I’ve been fascinated with the lacy patterning of the once-popular Spirograph®. I studied the mathematics behind the toy then designed and manufactured my own giant-sized gears, creating my very own drawing machine. I use my drawing apparatus to produce these complex and intricate drawings that aim at the intersection of math and art. Drawings are created with numerous, individually drawn, hypotrochoid and epitrochoid patterns. (MinM Green Circle Abstract) More about my drawing method: www.etsy.com/shop/ParametricDrawing/about/ All drawings and images are. © Copyright Mary Wagner. ALL RIGHTS RESERVED. If you purchase a drawing the copyright remains with me, Mary Wagner. No reproduction without written authorization. Have any questions? Contact the shop owner.