Youthful picture of Jr. Welterweight Boxer Mushy Callahan around 1920. According to Boxing historians from the IBRO, all photos taken by the Sports Agency NATIONAL prior to 1923 failed to renew their copyrights. Copyrights taken in this period expired in eighteen years. The logo National clearly appeared in the bottom right of this photo when it was enlarged, and is still evident. This picture is therefore by definition PUBLIC DOMAIN US due to an expired copyright. I would not, however recommend this photo be ported to Wiki Commons.