The Edison Diamond Disc was a type of phonograph record produced and marketed by Thomas Edison in the early 1900's.  Diamond Discs are much thicker than a shellac 78 and require a dedicated specialized player to properly play as they not only play at a different speed but also the needle must be at a different angle than what standard phonographs and modern day record players play at.

All our Diamond Discs are graded visually only and sold as is since we do not have a player to test them on.