Used Antique Sailor Fountain Pen, 21K Nib

This is a used item. Antique Sailor fountain pen, 21K nib ●It was acquired in the 1970s. ●It was stored without much use. ●The model number is unknown.The nib is 21K.Please judge from the photo. ●Dimensions:

Approximately 115mm (when stored), 143mm (when writing) - Trunk shaft diameter:

approx. 11mm ●Cap diameter:

Approximately 12mm (excluding clip) ●Mechanism:

Cartridge type. ●I applied ink to the pen tip and tried writing on it, and then washed it with water. ●There are signs of use and small scratches.