Copped a molotow 127HS Traffic Red the other day and noticed today that it's the only one that says on the fill guage next to the easy, fast & clean line, "*Check Cap for EF (1mm extra-fine)!" There's nowhere to be seen, a place for an extra tip. I'm wondering what this means. The label does say, though, 2mm round tip/1mm Extra Fine* The tip exposed is a normal 2mm round, like most of the small ones I find. I did flip it and it's the same on both sides.
I have a pair of Black Molotows with the same markings, but the nib that came ON one of em was a 1.5mm crossover nib and the other was like yours. the key is to look at the top of the cap-- if it has an "EF" instead of the 'M' Molotow logo, then it has the extra-fine 1mm crossover nib on it.