McClelland Barclay (1891–1942) was an American painter of pin-up art. Born in St. Louis in 1891, Barclay studied first at the Art Institute of Chicago, then later at the Art Students League in New York City, where he studied under George Bridgman and Thomas Fogarty. By the age of 21, Barclay's work had been published in The Saturday Evening Post, Ladies' Home Journal, and Cosmopolitan.

Barclay did not limit himself to painting. In the late 1930s, Barclay set up a small company to reproduce jewelry and fabricate utilitarian figures for ashtrays, bookends, desk sets, lamps, and other articles for home and office use. These products were fabricated out of cast grey metal with a thick bronze plate finish and they retailed for just a few dollars. To read more about McClelland Barclay's life and achievements please click on the following link:
McClelland Barclay on Wikipedia

And for a more extensive article on McClelland Barclay jewelry, please visit Jennifer Lynn's website. Very educational article by Patricia Gostick.
McClelland Barclay Jewelry:The Details

There is also another article by Patricia Gostick on Illusion Jewels that explains more about the signatures.
McCLELLAND BARCLAY JEWELRY SIGNATURES

For more information on the difference between McClelland Barclay signature and the other company called just Barclay, please visit Illusion Jewels RCJ reference page at this link:
Signatures "B"