Edison Diamond Disc (U.S.A.) / 1913
Corporate background:
In the battle of technology between
cylinders and discs, Thomas Edison finally had to concede that
the public preferred discs.
However, in his line of 'Diamond Discs,'
introduced in 1913, he retained the 'hill-and dale' vertical
movement of a ball-shaped stylus in the cylinder groove, as
opposed to the side-to-side movement of the sharp-pointed
needle for 'lateral' records.
These bulky records, which could only be
played on Edison machines, were a quarter of an inch thick and
1lb in weight.
Design: The
blind-engraved information was obviously difficult to read.
Edison finally switched to paper labels in
1920.