Recently recevied a 140 and 400NN as presents.
There's a crack in the 140 section with some leakage from it, I'm assuming I'll need a doner barrel/section ?
The 400NN is in much better shape, although the tipping has mostly gone from the KEF nib. I had originally planned to swop the 140 nib into it (they're both screw in ?) but the nib units on both pens seem to be stuck. What's the best way to loosen these up ? Keep on soaking ? Heat ?
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