Rusted Out Red Signal Lamp Restoration

Will this ancient signal lamp light again? Restoration of a very old, rusted out Dietz signal lamp. This signal lamp is super old and was very very rusted out. The tank has been sealed and its use is completely safe. The most difficult part of this restoration turned out to be the glass globe. Covered completely in decades of deep scratches as well as rub scratches. I thought it was just dirt; it was scratches. Making matters worse, the glass is heat tempered which makes it very hard to polish. The glass globe alone took me 6 hours to polish, and there are still some chips and deep scratches.