Not done! lol of course its a fail, After i find a suitable bulb in my "hoarding room" replacement ill be set to go.Fail...
I only see a disassembled meter.
Actually those bulbs are not odd. They have been used in meters for decades. Usually found in higher end meters especially in high end audio consoles like used in broadcasting. I used to find them in all the McCurdy and Ward-Beck audio consoles as well as in Studer and Revox reel-reel to machines. Because of their shape they give a more uniform distribution of light across the meter face with no hot spots.