Illusion of Similar Reference Year 1980 Medium paper Materials graphite, colored wax pencil on tracing vellum Dimensions 14″h × 17″w ← Frame of Reference 34th Scale (1980) Illusion of Similar Reflection (1980) → Related works Non-Titled Drawing 87 1987 Non-Titled Drawing 1988 Non-Titled-88 1988 Co-Ordinate - YVGRB 1989
