This is an ink-stopper fountain pen from SSS (Sun-Es), an old Japanese fountain pen manufacturer. It has a 14K nib, but it's likely from another company. As you can see in the photos, the nib is misaligned, making writing impossible. Also, due to the deterioration of the internal cork, ink leakage is likely. Please use it after having it repaired by someone with repair skills or a specialist. It's probably from before the war, and there are many scratches, but it's very valuable just for retaining its original form. I don't have any repair skills, so I cleaned it simply and kept it as a collection. I hope it reaches someone who can repair it and bring it back to a usable writing condition. Writing instruments, fountain pen, vintage, made in Japan, antique, antique goods