This is a fountain pen that my grandfather used to own. The fountain pen body is Platinum, but the cap is from Zebra. I believe the original cap was lost. The nib is marked 14k. I don't know the detailed specifications, but it's an old, vintage item. I also have the old case, which I will include... The case is made of leather by Pilot. There is some dirt and deterioration, so please comment if you don't need it. Please purchase if you understand that this is a used item.