lacquer

Hello all Fisrt time I post here : I am from France , hobbyist bass player for 20 years and owning for years a 94' Fortress one. I purchased it fairly used and am now trying to give her a better face : see pics below I suppose that the original finishing was : Dark walnut/ dark brown Colored...

Hey guys, Does anyone know if the high gloss finishes is nitro-cellulose or a catalyzed polymer lacquer? Cheers