Mönnig Brothers / Gebruder Mönnig Markneukirchen Grand Prix
My thanks to Johnny Böhl for sending these pictures.
The Grand Prix probably means the Grand Prize in the clarinet category at the 1937 World Expo in Paris.
My thanks to Johnny Böhl for sending these pictures.
The Grand Prix probably means the Grand Prize in the clarinet category at the 1937 World Expo in Paris.