The first logo of Warner Bros. Pictures arrived on the scene on September 23, 1923, speaking of the logo, on a black background, a large, bizzarely shaped shield is seen, with a very wide top. The top part of the shield shows a picture of the Warner studio in Burbank, CA, the bottom part having a squashed, stuffed, stylized "W-B" with a small hyphen in the center next to the "W" & "B". "aWARNER BROTHERS" is above the shield (with "WARNER BROTHERS" in arc around the shield in a 1920s serif font, but the style was changed and was modify in 1926 with the 3rd up line of the "W" curves up, a la the first Columbia logo, with "CLASSIC of the SCREEN" in the same font below. Also in 1926 or so, it changed to "PRODUCTION" in still the same font.Edit
The first logo will go on and ended on August 30, 1929.