Through the power of the Internet we find a man named John McDavid. According to his Flickr profile he shares the same birthday as Robin Trower March 9th. In 1976 he shot some very good photographs of the Robin Trower Band playing at the peak of their popularity in Birmingham, Alabama. I spent some time restoring a grainy scan to something more closely resembling it's original content and here it is.
Thanks John, nice work!