Circa 1981. Although this is a commemorative 10-ounce bottle, the label is similar to the design used from 1903 to 1919. The original bottles were 6-1/2 ounces and the diamond was a paper label. Labels used from 1903 to 1908 had Coca-Cola in red, but the logo was blue on all others. The signature is "Asa G. Chandler PT," which was added in 1907. The border on the bottom right originally contained the volume of the bottle in ounces. Here it indicates this is a commemorative bottle.