this was passed down to me from my brother. It is vintage having the york name on the horn. It was purchased in 1975 in NJ, I was there so I know it is 30+ YEARS old. It has austria and the serial number of 572770 stamped on the side. What is the value of this piece and what year was it made. Please email me only. Have pics and case. in great condition, last time used was 25 yrs ago.