10 1/2" - 9" X 7 1/4" (266mm - 229mm X 184mm)

(embossed) "B in an O"

{Ohio Brass}

Picture courtesy Charles Robinson

10 1/2" - 9" X 7 1/4" (266mm - 229mm X 184mm)

(embossed) "B in an O" (early radio treatment)

{Ohio Brass}

Picture courtesy Charles Robinson