Looking for a part for a cut crystal Lamp

Hi Fellow Vintage Lovers,

I have a cut crystal lamp with a cut crystal shade that rests on a tripod type of shade holder.

Unfortunately, some one broke one of the arms off at a show, and I need to find a replacement tripod. I cannot find the original arm to have it soldered, as another arm was, so I would like to find a complete one.

I have added some pictures for you to view. Any and all help in hunting down this piece would be greatly appreciated.

The center hole is approximately ½ inch in diameter and the ring is about ¾ of an inch in diameter

The one good arm is about 4 1/16 inches long.

The cut glass lamp shade is about 8 1/8^th inches in diameter.

You can see some of the shade in the second to last picture.

Thanks

Granny Wicker  (aka Mark)