ANTIQUE LIGHT BULB  CARBON FILAMENT HAIRPIN.RED  COLOR  58 VOLT WORKING .THIS BULB IS NOS,NO BLACKENING INSIDE.IT HAS FRENCH-EUROPEAN  TYPE EUROPEAN C7 SIZE BASE IS PLASTER FILLED INDICATING THE AGE-ERA. IWONDER IF THESE COULD BE EARLY CHRISTMAS AS I HAVE OTHER COLORS OF THIS TYPE ALSO ON AUCTION..THE ODD 58 VOLT RATING MAY MEAN THESE WERE USED IN SERIES WITH ANOTHER BULB