Tascam 238 and others rack ear black

These are used  on the Tascam 238 and probably others, the standard unit comes with a piece at either end which gets removed and then you connect these to fit into a standard 19" rack mount, these are in the standard Tascam black

bit scratched these and look like the was resprayed but still rare

There seems to be a left or right as a slight nik at the bottom though there is nothing on the unit thats sticking out, maybe an issue on another machine.

price for one they do not come with screws but they are standard metric