The Symphonie 3 clarinet was a professional model clarinet offered by Leblanc, Paris, in the 1960's, which gradually evolved into the L7 series of the 1970's. The bore is of medium large size at 15.0mm, which matches the Leblanc Pete Fountain & Dynamic H models. ATTENTION! there may be size of scratches. See photos before you buy. The instrument plays beautifully!!
eBay