Showa Retro Mini Ballpoint Pens, Black and Red, 2 Total

This is a very old item.
There are no displays, so details are unknown. It is also unknown if the ink can be replaced.

There are two pens, one black and one red, but the ink no longer flows due to age-related deterioration, so the ink color is also unknown. Last winter, when slightly warmed, a little ink came out. It seems both pens have black ink. I don't think they will write anymore.

There are some scratches, but they are stylish. How about for collectors? (Not all scratches are shown in the photos. Please purchase with prior understanding.)

Mini ballpoint pens
Black, Red - Total 2 pens
Extra-fine ballpoint pens
For planners (?)
Showa Retro
Size: Length 12.5cm (10cm when cap is removed)
Width Approx. 0.5cm diameter

Please purchase with understanding that this is an old item with scratches and damage.