Airplane engine desk accessory 1950's Continental 0-300 Cessna 172 Skyhawk Engine Piston Pencil Pen Marker Holder

Airplane engine desk accessory  Continental 0-300 (C145) Air-Cooled Flat-6 Aircraft Engine Piston Pencil Pen Marker Holder. Airplane engine desk accessory Continental 0-300 Authentic 1950's Piston removed from Cessna 172 Skyhawk, Cessna 175 Skylark and Cessna 170 Airplanes.   Airplane engine desk accessory Continental 0-300 Piston been blasted to Raw Metal. There are no two Pencil Holders exactly the same (these pistons have air kissed patina on them and it shows) Continental 0-300 Measures 2 3/4 inches Tall Airplane engine desk accessory 4 Inches in Diameter with (3) 17/32 inch holes Airplane engine desk accessory Continental 0-300 Each holder made by hand in the USA.