villagenut
Gold Member
Have no idea what it was for but has embossed very faintly what I believe is OLUME PATENTED DEC 28th 1898. The last letter E may be a B or an H, it is so hard to see. You have to tilt it just right while mars and jupiter are all in line..you know how that goes. I have found insulators that were embossed like that, very difficult to get the right angle.
There are no threads on it male or female. There are "stops" on what I call the bottom side where it is kept from spinning.




There are no threads on it male or female. There are "stops" on what I call the bottom side where it is kept from spinning.



