Boyd’s Crystal Art Glass: B in a diamond

 Boyd’s Crystal Art Glass

     Cambridge, Ohio

  (1978 ~ the present)

 “B in a diamond” mark on glassware

John Degenhart started Degenhart Crystal Art Glass in 1947, in Cambridge, Ohio, specializing in handmade glass.  After John’s death in 1964, his wife Elizabeth took over the glassmaking operation and ran it until she passed away in 1978.  The factory was sold that same year to Bernard C. Boyd and his son Bernard F. Boyd, and was renamed Boyd’s Crystal Art Glass, officially starting business on October 10, 1978.

Some of the glass molds owned and used by Degenhart have also been used in later years by Boyd.   However, all of the Boyd-produced  pieces are marked with their “B in a diamond” trademark to reflect the change in ownership of the factory.  Just as their predecessor,  Boyd also specializes in entirely handmade art glass including a variety of ornamental and novelty items.  Many new molds have been made over the years. Whimseys, covered chicken or “hen-on-nest” dishes (three sizes, including a 5-inch hen, a 3-inch hen, and the smallest one – 2 & 1/2″ in length which is called the “chick salt”), small animal, character and vehicle figurines, open and covered salts and toothpick holders are made by hand.

Boyd glass "chick salt" covered dish in lilac glass. Photo courtesy of ebay seller "Dotdority".

Boyd glass “chick salt” covered dish in “Heatherbloom”, made in July of 1984. This color changes from a lilac shade under incandescent light to a pale blue color under fluorescent light!  (Photo courtesy of ebay seller “Dotdority”)


As mentioned above, Boyd’s has been very diligent in marking virtually all  of their glassware with their “B within a diamond” trademark.

Every 5 years they have made a slight change in the mark by adding a straight line or letter to the basic B-diamond mark.  For more information on dating their glassware, see this page at their website illustrating their trademark variations used from 1978 to 2012:

The range of colors that have been used for their glassware is staggering………….. numbering over 300 different shades of color, both single-color, multi-color combos, transparent, carnival, frosted (satin), opalescent and entirely opaque glass.  (See the links at their site illustrating the great variety of colors their “chick salt” has been made in over the years!)


"B in a diamond" mark on inside of "Star & Dewdrop" master salt made by Boyd Glass

“B in a diamond” mark on inside bottom of Star & Dewdrop master salt dish in vaseline glass, made in 1994. The mark has 3 lines outside the diamond, this variation indicating production between 1993-1998.






Boyd’s official website is at .

This webpage has lots of in-depth information on Boyd’s glass open salts (salt dips, salt cellars) with pattern names, official color names, and dates of production.  (this is a .pdf Adobe file)

This page (an article by Shirley Smith) shows some examples of  Boyd’s hen-on-nest dishes in carnival glass, and a list of carnival colors made:

Click here to return to the Glass Bottle Marks,  page one.  Also, see the entry on that page for “B in a diamond” mark seen on antique aqua utilitarian bottles……….. a similar mark used much earlier by an entirely unrelated firm, Binghamton Glass Company of Binghamton, New York.

Please click here to go to my Home Page.

Click here for some basic information on EAPG (Early American Pattern Glass). 

Article on Depression Glass.

Click here for my webpage article on Carnival Glass.



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