Picked up two of these off the 'bay. One is in great shape, the other a work in progress.

After soaking in water for 2 days, I managed to get the nib loose enough to remove. It had obviously been left filled with black ink and allowed to dry out - thoroughly.

When I move the piston toward the nib, ink seeps out of the joint between the visulated section and the black barrel.

What do I do to take this rascal apart and fix it properly?

Thanks in advance for any help you can give me.