Geriaviator,
thank you for your explanation. Berry au Bac is very close to a place we visit when in France. It is The Dragons Cave on the Chemin des Dames. I will make a point of going there when I next visit the area. Your stories and the incredible pics I find riveting as I do Danny's tales. I too have a regret that I never managed to get a neighbour to the RAF Museum before he died. He had flown on the Berlin Airlift as a Flight Engineer on Avro Yorks. His pics , log book etc were all lost in a burglary !