Vintage sterling silver small ballpoint pen in paper box

We will introduce you to vintage writing instruments.

This is a small knock-type pure silver ballpoint pen, the year of manufacture and manufacturer of which are unknown.
It is a very small pen with a detailed engine-turned design on the surface.
There is a jump ring at the end of the pen and a red tassel is attached.
The refills are compatible with the 4C standard and are replaced with new ones.
Comes with a paper case and instructions.

We hope this once-in-a-lifetime encounter will be a special one for you!

【condition】
Appearance: ★★★★☆ Excellent condition with no noticeable scratches or stains

Function: ★★★★☆ Slight deterioration but no major issues

Although there is some wear due to age, it has been well maintained and is in beautiful condition. The barrel is engraved with "STERLING SILVER." There is no name or initials engraved. The refill has been replaced with a new JETSTREAM refill.

*As this is an old item, there are small scratches and stains due to aging.
*Please check the photos and understand before purchasing.

【detail】
・Manufacturer: Unknown
-Year of manufacture unknown (vintage)
Material: Sterling silver (800/1000) *Estimated
・Total length 87mm Maximum shaft diameter 6mm
・Refill 4C standard black
Weight: 7.9g

*This is an antique item and there is no other item that is exactly the same.
※If you have any questions, please feel free to ask.