How do you find old French radio opera recordings on 78 RPM?


Does anyone have any suggestions or advice? Thanks

borisgodunov

Sorry! There a few classical radio recordings that I am looking for. 

One specific recording that I know exists and is probably digitized is from Radio France, June 1935 Thursday 20-June-1935 Symphony concert by the National Orchestra, conducted by D-E Inghelbrecht. (Specific detals below) I am just not sure where I can find it. But it is out there. 

My search for Radio France archives for that time period hasn't led to anything, but there is apparently a huge collection of Radio France recordings, just not sure where to look for that specific recording and time period. 

I am trying to find a specific archive in France where it might be located. Not sure whether these programs were ever digitized. 

If this isn't a forum where people would know, maybe someone could direct me to a other sites. I guess this is the kind of thing that few people would know about

I should probably try French forums dealing with old classical forums., using Google translate. 

Thanks so much!

Details for recording

Translation In English

Thursday 20-June-35

Symphony concert by the National Orchestra, conducted by D-E Inghelbrecht, with Yvonne Brothier, Friant and Claude Got: Obéron, overture (Weber); Pastoral suite (Chabrier); Works of Alfred Bruneau: L'Ouragan, Le Rêve; Virginia; the child king; The attack on the mill; Messidor.

In French

jeudi 20-juin-35

Concert symphonique par l'Orchestre National, dir par D-E Inghelbrecht, avec Yvonne Brothier, Friant et Claude Got : Obéron, ouverture (Weber) ; Suite pastorale (Chabrier) ; Oeuvres d'Alfred Bruneau : L'Ouragan, Le Rêve ; Virginie ; l'enfant roi ; L'attaque du moulin ; Messidor .