Ok. Let me try this again. Here is the information I have pulled from the bulb. There is a piece of paper in the glass tube where the filaments protrude from. On this paper is a photo of a bulb and on side is sez: ?The manufacturer of this lamp is Licensed under patents noted on the other side? On the other side are dates and to the best of my eye there are. In large text> Jan 22, 1895 In smaller text, the dates are April 16 1895. Jan 19 1897, April 28 1903, Nov 8 1904, April 27 1909, April 30 1909. There is also the code: NP6442.. On one side of the tube is the # 5 (watts?) There are some other 4 digits codes that I can not make out at this time. When you turn on this light, a lower middle element lights up. When you move the switch, the upper bigger element lights also. (2 stage bulb?) I do NOT know what brand this bulb is. I have viewed hundreds of bulbs, both here on this site and others and have fold NO match. Any help from the experts here would be greatly appreciated. Thank you! Craig Clark. Other additional posts follow with additional pics.
