Rare Vtg Double Sided Blue White Porcelain Warning Label Gas Pump Sign Contains Lead. Good overall condition for its age with normal wear and fading  and dents , etc. Please see all the photos for the condition.  I have never seen one like this. Was it a manufacturing defect?

Rare Vtg Double Sided Blue White Porcelain Warning Label Gas Pump Sign Lead

• Type: Gas Pump Sign
• Material: Porcelain
• Color: Gray-Blue and White
• Features:
  • Double-sided design
  • Warning label for gas pumps
  • Includes lead-related warning
• Condition: Good vintage condition with typical signs of age and use
• Ideal for:
  • Collectors of vintage gas and oil memorabilia
  • Adding a unique touch to automotive or industrial decor
  • Display in garages, workshops, or vintage-themed rooms