Old friend Mary Boroff asked me about the 8N Narrow Front. I told her I'm 99.98% certain they were supplied by an aftermarket company and never made and sold by Ford Tractor, at least I've never seen them in any accessory catalog nor parts catalog. So who was the maker? Were they a HI-CROP addition? If so, probably a regional item, like south/southwest. Archive search here only turned up the photo below.