My mother gave me the fountain pen that her father used to keep the accounts for the shoe store he owned in China, before the Red Army came through.

"He'd like you to use it," she said.

"I'd like to use it," I told her.

But I think the bladder might leak.  I can't tell; I don't own any pens of the fountainy persuasion and thus I own no ink.

What should I do, aficionados, to get this pen rehabilitated?