I have a Savinelli Capri which I've been told is old and somewhat rare. Is there a way to find out the year of the pipe? I have found some info that said they were made very early on, and stopped production in the early 1950's. Stampings read- Savinelli Capri root briar 904 Italy. And has the S shield with two crossed pipes over it. I have a youtube channel of pipes I've restored, and I like to give Accurate descriptions if possible.