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HP-12c Platinum
(feddit.uk)
HP's most accurate financial calculator, oddly enough, and despite only returning the ceiling of solve-for-n.
Obligatory "what pen is that?"
It's a Stilform fountain pen. They are a recent make using machined parts and bock nibs with a nifty magnetic cap. I'm having slight issues with the bock nibs though - they are going to need a bit more work to keep the flow how I like it.
I'm getting lilliput vibes.
I've also heard mixed reviews of bock nibs. Hell, even my most recent purchase, a sailor, required ssome nib adjustments!
Yeah, I think they need to tune their nibs before they let them out. No such thing as too much flow - just too little paper.