Pilot 0.5mm mechanical pencil. It is not listed in the current catalog, so I think it is discontinued. Part number and age unknown. Stored for a long time, unused. It has been stored in a bag, but there are some minor scratches. Please check the images. I think the design where the body of the clip is cut on the surface is unusual. - Color: Silver and black Please consider this if you understand the above. Thank you for viewing.