I am looking for some help with the color of this insulator. I don't think it is quite dark enough to be considered blackglass, but then again I am new at this.
I got to looking this morning and put together a lineup of the three 121's I have in my collection. I imagine there is quite a bit a variation in glass from different manufacturers but I posted a comparison shot if this helps since the lighting methods are less than ideal.
Thanks for all the responses I have received so far.