Royal Blue was introduced in 1931 and was produced into the early 1940s. This is the second time Cambridge called a color Royal Blue; see the earlier Royal Blue introduced in 1916. |
1924 Aurora | 1925 Night Blue (Blue 2) | 1931 Royal Blue |
1916 Royal Blue | 1929 Ritz Blue | 1936 Moonlight |
1903 Blue | 1926 Bluebell | 1928 Willow Blue |