Lamp cover - USA silicone Blue

Amercian made factory original silicone based elastomer lamp
sleeves are designed to withstand high bulb temperatures.

These sleeves can actually extend bulb life by up to 6% by acting
as a heat sink for the lamp. Made in USA

For use on #44, #47, #555 and all similar shape
miniature lamps. Also available in red, yellow, green, and white.

Reference:

• Williams 03-8063-1
  
• Gottlieb 24875W
  
• Data East / Sega / Stern 545-5014-05