FROM MADEIRA WITH LOVE...

Antique molded glass Art Deco pendant lamp shade in a Marigold Iridescence cased in white.

The color reminiscent of Carnival Glass.

This is a style of hanging lamp shade that was popular in Portugal and Spain, in the early 20th century.  
 
A round shade was molded with concentric rings or ribs encircling a ball.

Sitting on a table, it measures 7 inches high, approximately 6 1/2 inches in diameter measured across at the widest.

The opening measures 3 inches across.

No cracks or unevenness in the coloration detected.

I found a few flea bites on the shade rim opening that would be concealed with an adapter.   

I have inserted a standard size playing card in one photo as a reference for size.

MUCH OBLIGED