DescriptionPGuitar.png Français : Icone de guitare Date 20 August 2007 (original upload date) Source No machine-readable source provided. Own work assumed
[[Image:Upstroke skank on E64.png]] {{GFDL-self|migration=relicense}} [[Category:Music midis]] Snyder, Jerry (1999). Jerry Snyder's Guitar School, p.29. ISBN 0739002600
Patent of T. McHugh for a guitar truss rod (1921). The patent is available here (after free subscription : http://www.freepatentsonline.com/1446758.pdf