https://www.ebay.co.uk/itm/Aria-Pro2-Bass-Guitar-C-1980-039-s-Rare-Fret-less-version-believe-SB-900-series-/183393210685?_trksid=p2047675.l2557&nma=true&si=8Ks5qeQ39S0TSjPVIm3%2FqjmhjJw%3D&orig_cvip=true&nordt=true&rt=nc
... did Aria ever do one like this with a plain (rosewood ? / unlined) f/board?.... (coming away from the neck, in this case!) :-
....