Brand new never used, old manufacture stock. These cartridge needles are no longer available as new manufacture. This makes them very rare.
Used on 1155k Califone, 1455k, etc. Any stereo Califone usually uses this cartridge. To be sure your Califone uses this cartridge/needle set, grasp the front of the cartridge and it should pull directly out of its flip over holder. Then look to be sure it has four brass contact strips, not two as the 57 series has. If you try to install the two strip cartridge you will either only get Monoural sound or no sound depending on how the holder is wired.
I only have a few of these in stock and purchase NOS ones when I can find them.
I do have a substitutef that will wire into the spot if you remove the holder and unsolder the wires. Once the new cartridge is installed, the wires are re-soldered to the same pins on the new cartridge.
You will see the 007-0291-03 listed in the Califone product section with this cartridge needle