see site for many more - 1895 - Cusack's freehand ornament. A text book with chapters on elements, principles, and methods of freehand drawing, for the general use of teachers and students . by Armstrong, Charles
Blue Biggs Jasper is a silicated volcanic ash. It was formed during a volcanic eruption and is part of a Miocene series of rocks called the John Day Formation, near Biggs, Oregon, USA. It is a decorative stone used for jewellery and trinkets.