They did paint a C or two white. That and the 500 but that was 1954.
1938 RC changed their color . I know I have 11031d said:John, any chance of you posting this photo? If it's a CASE, the RC was a lighter grey than the L and C. They stopped making the grey tractors for the 1939 model year. The RC was also a flathead Waukesha engine.