Here is a very nice collection with 10 old D.Disc records from around 1912/1918 Diamond disc records are some different from normal 78 rpm records, as they are recorded vertical cut and you have to play them with diamond disc edison or you can play them electric if you adjust your element. Look at the list below and the pictures to see what is recording. 1 51407 , harry rademan's dace orchestre / haunting melody /words of love 2 50085 , new york militairy band , ben hur chahot race march / belle of nww york 3 50586 will oakland , that tumble down shack / do you mean all you told me 4 51374 billy jones , the side walks of new york / walter scanlan , i'm just a ragged newsboy 5 51256 mcnalpack dance orchestra, dreamy melody /stevens trio , when you dance with a wonderful girl 6 82549 frieda hempel , ave maria Explanatory Talk 7 51235 billy jones - ernest hare , that old gang of my / that's a lot of bunk 8 51002 walter van brunt , the humotreske song / where the silver colorado 9 50870 joseph samuels (violin) st. patricks day / oh gee 10 51048 carles ross taggart . a country fiddles gets new thrills / a country fiddles at the thelephone All the records are in verry good condition no craks or edge damage and in replacement sleeves, parcel will be insured and verry well packed shipped See also below Thanks to WIKEPEDIA. The Edison Diamond Disc Record is a type of phonograph record marketed by Thomas A. Edison, Inc. on their Edison Record label from 1912 to 1929. They were named Diamond Discs because the matching Edison Disc Phonograph was fitted with a permanent conical diamond stylus for playing them. Diamond Discs were incompatible with lateral-groove disc record players, e.g. the Victor Victrola, the disposable steel needles of which would damage them while extracting hardly any sound. Uniquely, they are just under 1⁄4 in (6.0 mm; 0.235 in) thick.[1]