Browse Items (1 total) Tags: unique - triangle depicted alongside circular shaped triangle and sistrum Browse All Browse by Tag Search Items Browse Map Sort by: Title Creator Date Added Les harmonies du son et l'histoire des instruments de musique - pg. 485 Tags: closed triangle, Portici Museum, SEE ALSO - other Rambosson, sistrum, unique - circular shape, unique - circular triangle depicted alongside sistrum, unique - not a triangle - possibly, unique - triangle depicted alongside circular shaped triangle and sistrum, unique - triangle depicted alongside sistrum, zero rings Featured Item Romberg’s Toy Symphony at St. James’s Hall