A Model 39 is the rarest of the Noblets....it has the most 'modern' keywork layout. Great horns, IMHO one for $1000 in playing shape...is a real bargain. They easily outperform vintage horns priced double....
I am not seeing anything dramatically bent or out of plumb.....
Beaugnier (who made Noblets) seems to have existed from late 50's-mid 70's. I don't believe a 39 is a 50's horn, however, I believe is was a model they introduced pretty late in the game.
But anyways, if you won it already, good buy. Definitely worth investin in some tech work to get it top-play shape. If you don't have anyone locally who can do that for a fair price, message me. I love working on these, and as there aren't many....the opportunity doesn't come up often.