I have also found two more types which I am still documenting including one that appears to date from the late 60s, probably the last model they made. This list is not complete, and continues to grow. Hopefully this can serve as a bit of a labelography for future use. Below I describe, label, and date each type of Mutoscope made disc as fully as possible with all dates I've encountered. I will continue to update this post so it may be used for reference.
Black on Green: Years:1951, 1955
Blue on Blue: Year: 1948
Red on Yellow: Years: 1943, 1944, 1945, 1946, 1947
Black On Red: 1948
Red on Beige: 1946, 1948
Mutoscope Black Label: (45 rpm) Years????
Black on White (45 rpm) 1957, 1959
GEM Mutoscope Disc:Years: 1945?
Empire State Observations Mutoscope Disc: Partial post mark to 1953? Last digit unclear. Patent Number 2600573 dates to 1946.
Red Top on Yellow: Years (unknown)