UA stands for Universal Audio which is one of the companies that succeeded Kay Bank after Vern Bank retired. I haven't figured out how to decipher the meaning behind the UA matrix numbers. G & A studio is also unknown to me. I'm guessing G stood for George Garrett, who owned this label. The address on the label is now a Kmart.
Twin Town 742 was made in 1969, so this must be early seventies.