Osram HQL De Luxe 50w mercury lamp

Another nice lamp for my collection I recently found on Ebay. I've yet to fire it up but it is NOS - I do have one of these 50w Deluxe Mercury lamps by Philips but this is my first Osram example in 50w (I have a pair of used 400w versions). Sadly this lamp is of fairly recent manufacture, and as such was made in China.