Colorless 6% lead glass, black and yellow stains; cast (lost wax), sandblasted. Two long low solid triangular (right angle) sections, each with narrow upper edge, body widening to base edge, upper half of each section striated with black blending into yellow stain, narrow end of each triangle cut off at right angle, wide end cast in jagged form to give interlocking appearance when ends are placed adjacent to each other and are slightly separated; upper and lower edges are ground flat and left unpolished, broad sides are polished, wide ends sandblasted to matte surface; inscribed near base on lower edge of each section: "Colin Reid 1986 R150 A (or) B".