MIT, that is correct. This is the very same shells and drums as the very fiorst Exports/Maxwins/Royce. They are Pearl made drums and they are worth about 200-250 in this condition, even with the light duty work of practice kits of this age, they are worth about the same. These are right at 1975-77, using old hardware.
The age is correct, they have been in boxes all these years according to the original post.