ligature proof time peices - An Overview
& a shade or black human body be place at the rear of it then lookeing around the thred by way of a prism one halfe of the thred shall appeare larger than the opposite & not each in a single immediate line, by cause of unequall refractions in the 2 differing colours.Identical with a movie, on you tube, of Dexter Gordon’s mouthpiece that plays “