First of all, welcome to Retrobike.
Basso have made some nice bikes. Depending on the tubing it could be anything from a respectable frame to something very nice indeed. Pictures are always helpful, but you need to post a couple of times before you can upload images.
Fluted seatposts were fashionable after a craze among cyclists in the early seventies for milling and drilling standard parts to lighten them. Campagnolo responded to the craze with their drilled Super Record brake levers and fluted seatpost. It became a styling cue that was copied by all the lesser manufacturers.
The Mavic rims are GP4 tubulars. The TQB rim is made by Ambrosio, and is probably more modern than the rest.
Calmes dans le demi-jour
Que les branches hautes font,
Pénétrons bien notre amour
De ce silence profond.