Incandescent light bulb I HAVE AN ANTIQUE ELECTRIC BULB; BRAND ASTRA, ENGLAND. IT'S FILAMENT IS SAID TO BE MADE OF CARBON INSTEAD OF TUNGSTEN. I WOULD LIKE TO KNOW WHEN THIS BULB IS MANUFACTURED. I COULD KNOW IT'S 1918. Asked by bapi Last updated by Jill W on 15 Jan 13:34 Answers: 1
