I got this from Hemmings Motor News: The Dodge brothers weren't Jewish, so why did their logo look like a Star of David? Mac's Motor City Garage this week. When John and Horace Dodge adopted the interlocking-triangle theme for their company logo in 1914, it wasn’t solely regarded as the the symbol of Judaism as it is today. More broadly, it was interpreted simply as a sign of good fortune. In iconography and numerology, the symbol is ancient. As you might expect, theories have arisen to explain the intertwined black and white triangles as the Dodges understood them. The triangle or delta is the fourth letter of the Greek alphabet, D in English, so the interlocking triangles could symbolize the the close partnership of the two Dodge brothers. The D and B in the logo are also interlinked, which lends some weight to the theory. (DB symbols can be found on millions of Ford parts manufactured by the Dodge Brothers between 1903 and 1914.) Or it could be that the brothers and their art staff simply liked the paired triangles, not fully aware of the Judaic symbolism.