But WC, in looking back in time you are compressing it. Just like P. Beretta. They now have a whale of an operation but it did not start out that way and for the most part it was post WWII. I am skeptical that V-C made their own tubes. Some time circa 1890, Holtzer was rolling out 45k tubes per month for the Lebel. So for a time they were in the business, possibly military related. Like I've stated: show me the machinery.

Kind Regards,

Raimey
rse