Philips Philora 80w MB/V mercury lamp

The other day, I was browsing Ebay as I usually do. I came across a lot that had this lamp, another gem (wait and see!) and a Philips MBF Blacklight from 1967, my eyes nearly popped out of their sockets as the seller didn't know what he had! They were listed as an auction, but I managed to make an offer for this and the other very rare lamp (not the blacklight for budget reasons sadly!) The price equated to about 10 pounds per lamp in the end, very reasonable for some very early NOS mercury lamps! It's amazing what people still have lying around. I never thought I'd find a lamp like this any time soon. These gems will be run-up one day... Sadly no date code was found on this lamp that was visible.