Genuine SWF 12665 Two pole turn signal lamp housing plus clear glass lens.
The beehive lens is a little less than 2 inches tall. The base is 3 inch diameter.

Fits the W121 190SL and Porsche 356. If you would prefer it with an Amber plastic lens then just ask.
The new part number to supersede this one is 1208200020.

I also have them listed used and as separate parts.