Topic: In the shade about lamp.

[gemmacler]

Hi
      This is an unusual one, maybe, but it is about glass - slag glass to be exact. Pictured is a lamp I bought recently, made of slag glass panels with leaded sections. I thought this was a repro lamp, of course,and I was quite happy with that, until I got it home and had a good look at it. Some of the panels are rippled glass,[ I've tried to picture them here,] and I began to think this was maybe an old lamp, they are ridged or rippled as I say, and it gives a good effect when the lamp is lit like veins in a leaf. More than half the panels are like that. I took the lamp to a repro lamp maker to get some fittings and she had never seen ribbed panels in her stock.Also the lamp is very heavy. Anybody wise on slag glass?   There is no red glass in this lamp or yellow which I read are later colours.
 No makers marks of course.
Hoping for illumination !
Best wishes
Gem

[Frank]

Textured glass is commonly supplied for stained glass, it is known by various names including trade names - so very hard to identify and date. A lot of the modern examples can also be produced in quite complex ways with coatings of various kinds. Look at suppliers of materials for stained glass for examples on-line.