Stripping and painting a Gitane mixte frame. Hubs said 81, but 78 is stamped on the upper edge of the front headtube lug.

I want to remowe the fixed cup of the BB. The BB was totally dry when I opened it and the cages of the BB bearrings was ground to almost nothing. Would like to replace the whole thing.

Could anybody tell me if the threads in the fixed cup is left or right? Do not think there is a lot of rust (frame is fine but terribly chipped) but it is not at all loose, and I`d like to know I do it right when I start being serious about it.

Thank you.