TherocAfter exerting as much force as I was willing to risk, IMHO, the nib/feed assembly is fixed. It's possible more force was needed.
There is no nomenclature on the nib other than Taccia and the nib size. BTW, the engraving on the nib is even more impressive up close.
The pen is an excellent weight, the sides will line up with the screw-on cap posted. It writes smoothly. It was my EDC fp for a while. IIRC, there was an issue with the converter seating st the converter would disengage. The plan was to locate another converter to see if that fixed the problem.
Delta distracted me with its (cobalt) blue Momo Design Alumina fp and well. . .
[sigh]
LeadingEdgeThanks for the information. I was wondering if Taccia used a system similar to Kaweco (The Levenger L-Tech does). They usually don't require much force to unscrew, so I tend to agree with you.
The Delta Momo is a sweet pen, I've owned several Deltas and they are fine pens all.