The circular blue and white BMW logo or roundel evolved from the circular Rapp Motorenwerke company logo, from which the BMW company grew, combined with the blue and white colors of the flag of Bavaria. [https://en.wikipedia.org/wiki/BMW#Roundel_logo ]
"Blue and white wares" (Chinese: 青花; pinyin: qīng-huā; literally "Blue flowers") designate white pottery and porcelain decorated under the glaze with a blue pigment, generally cobalt oxide. [wikipedia]
