Can anyone pin down a precise width measurement of the Targa F nib verses the Targa M nib? Due to the flexibility of these nibs, it's hard to tell whether the nib I have is an M or an F. A line of thought that might help: do Targa nibs generally have F nibs that are as fine as the "vintage" F nibs (like Snorkel nibs), or are they fatter, more like modern Western F nibs?
Due to the infuriating lack of nib marking on inlaid nibs, I can only leave it to the experts.
Best,
Summer