there are many production basses that leave the side markers where they would be on a fretted instrument - in other words there is no adjustment done for their fretless version
I'll have to go look at my factory '76 fretless but I think that's how Fender traditionally did it
which reminds me, as I put 20 yrs pro in on that bass, I would visualize the 'lines' that are NOT there
My 75 fretless P side dots are positioned where the fret line would be, not as on a fretted bass.