I know that the HP-41CV came in both full and half nut varieties (I think the first one I owned was a full nut), and I beleive I've heard that HP-41Cs and CX's also come in both varieties.
Can anyone confirm it and what of their relative rarity?
Just an obscure question based on the obvservation that all the CVs and CX's I've seen pictured and for sale seem to be half nut, and the reverse for C's.
If anyone is knowledgable enough to extend this into the discussion of blank nuts, feel free (was there a half blank HP CX nut, or is my other half mistaken when she calls me one :-)