Slag Glass

Amethyst and White Slag Glass Candlesticks (LEO Design)

In old glass factories, where craftsmen were making objects out of colored glass, any broken pieces, scraps or bits of leftover glass would be tossed into a pile called the "slag heap." Every now and then, the artisans would scoop-up a shovelful of this random, mixed-color glass for use in making a one-of-a-kind art glass piece—perhaps a bowl, a lamp shade, or a sheet of flat glass to be used for a stained glass window.  Such one-off pieces of glass were called "slag glass."

The candlesticks above, made around the Turn-of-the-Century, are referred to as "slag glass," though a distinction should be noted. This particular production was probably more intentional. The workshop made a wide range of items in the same amethyst glass and milk glass combination.  While the randomness of the swirls (and color distribution) were uncontrolled, the colors of the original "component glass" were deliberately chosen. Nevertheless, every candlestick is different in its color blend and the "movement" of the colors.  Click on the photo above to learn more about them.


Though our Greenwich Village store is now permanently closed, LEO Design is still alive and well!  Please visit our on-line store where we continue to sell Handsome Gifts (

We also can be found in Pittsburgh's historic "Strip District" at Mahla & Co. Antiques ( or in Canonsburg, Pennsylvania at The Antique Center of Strabane (

Or call to arrange to visit our Pittsburgh showroom (by private appointment only).  917-446-4248