This is a Parker Duofold International fountain pen in Marble Blue. The Duofold is a flagship model representing Parker, which was born in the 1920s, and this is the easy-to-handle "International" size. Marble Blue is a popular color with a deep blue base and expressive marble patterns, allowing you to enjoy various expressions depending on how the light hits it. It has a classic yet glamorous design. The nib is F (Fine). It's easy to write fine characters, and it's a practical nib width that can be used widely from everyday use to business purposes. The ink flow is also stable, and the writing feel is smooth with few quirks. Overall, there is little sign of use, and it is in beautiful condition with no noticeable scratches or dents. There are no cracks, chips, or malfunctions, and no engraved names. The operation has been confirmed, and it is possible to write without any problems. As a bonus, a converter is also included in addition to the pen body. Since it is a bonus, the operation of the converter cannot be guaranteed. The box is not included as it was for photography purposes.