Here's a comparison between the 1934 and 1935 backs. The 1934 back shows that Lefty won 24 games and lost 8 in 1933. The 1935 back shows that Lefty won 8 and lost 8 in 1934. Lefty experienced his first arm problems in 1934 and his record in 1934 is evidence of that. Note that both backs are Green backs. There is no Blue back.
Here's a scan of my first Grove Diamond Star. It's hardly a 7 or 8. Perhaps it is a 0.8.
