As the printing process got more refined, so did the symbols used in musical notation. A standardized G-clef can be seen as early as the 17th century. In the 19th century inexpensive sheet music encouraged amateur musicians – and brought music to the people. 

PDS9707
Finish: Solid brass, electro-plated with non-tarnishing silver finish
Dimensions: Pendant is approx. 1.25" and hangs from an 18" chain