This is a custom fountain pen. It's a Sailor Profit Standard fountain pen. The 14k old design nib has been customized with a zoom to a Naginata-style grind. I happened to find and purchase this at an event a few years ago. (My memory is vague as it was quite a while ago.) It has only been used at home, and the frequency of use is quite low. However, it's an older design and likely from a considerable time ago. I've included magnified images from a loupe. I believe the Naginata-like line quality is clearly visible. Zoom nibs with the old design are quite rare, and this one has been further ground, making it a rare piece. The pen body and converter will be included. It will be shipped via Takkyubin Compact. Thank you.