I saw a post once where someone had found some square taper cranks that were I think 150 135 mm
I think they were for a Penny Farthing but not sure. I would like to have a set of 135mm cranks
if anyone knows where I can find them please let me know
135/150mm multi-hole cranks seem unlikely. Multi-hole cranks usually have at least 20mm between each hole. Maybe you confuse with these 125/150mm coterless multi-hole cranks.
BTW, I don’t know any 135mm coterless cranks. Good luck for your search!