Set of 10 nibs for old fountain pens only. ※ Gold is not included. I have no knowledge, so I don't know if they can actually be used. They are very old. Please check the photos for dirt, rust, and peeling plating. These items were stored wrapped in paper, so I think they are new. They look clean even to the untrained eye. However, I have no knowledge, so I don't know if they can actually be used. Please purchase if you can judge from the photos. If you like old things, are looking for remakes or parts, please consider purchasing.