I have in my possession some really tiny pens - with the cap on they are only three and a quarter inches long.
They have been extremely polite so far - section came out with a very little gentle persuasion, most of old dried sac seems to be out, the feed pulled right out of the section so clearly I don't need a block to get it out -
But they have no nibs. And they are tiny. It seems self-evident to me that a Sheaffer school pen nib is going to look like Goliath next to these things, just to give a sense of them, and I need nibs for them.
How do I measure for such a thing? And once I have, where do I start looking for them?