Copper Mist/Chocolate Brown
1969-1991ish. The color was introduced at the beginning of the "PAT PENDING" era and the last ones were available in a One Touch +/Master Touch models. Was renamed "chocolate" by 1976-77.
Avocado green, 1967-1973 (late thumbscrew era, PAT PENDING, pat number era) there are fewer examples of the pre pat thumbscrews (67-68) and more PAT PENDINGS (69-72) and less examples of the patent numbered cados (1973) Color was replaced by Lime in 1974. No one touch examples exist in this color.