Does anyone know if Gitane ever used Nervex Professional lugs on their frames? If so, what year and model? I have a French frame and fork with Nervex Professional lugs and fork crown. I would think Motobecane but for the half chrome fork blades and both rear stays. Then again I would guess Gitane because of the crimped seat stay caps but for the use of Nervex lugs. I would appreciated some thought on this perplexing matter. Thanks.