My Brother plays a Paris made Leblanc Al Hirt model. I'm not sure it's age but I think it is mid to late 70's. The horn plays great. Lighting fast valves with a HUGE open tone. I think the bore is .468 and the horn is light as a feather. It doesn't have the engraving but rather a plain silk finish that just says "LaBlanc" in script on the bell. I haven't seen any comments about this horn on this page. Does anyone play or have one? Do you like it or not? How would you rate it against a 50's Olds Recording?