I had the same problem when restoring my '52 speedo. I ended up using blue (wanted modern color in lieu of factory red for high beams) glass meant for stain glass windows (purchased a large box crafts store). I purchased the sheet glass (1/8" thick) and cut it into a circle to fit the indicator bulb socket. Took my time and nibbled the glass into round shape and then used my grinder to finish it up. Turned out perfect and will be infinately durable.
Last edited by DavidF; 12/18/2011 4:35 PM.
