Here's an early '70s Apollo, made by Kawai, that looks just the same except for the control plate
(which someone probably changed):
Due to the nature of the Japanese musical instrument industry and its export business, your bass may have carried
another badge, or none at all. Kawai and Teisco were the same company from January, 1967, but still had their own
production lines for a while. Apollo was an U.S. import brand registered to the St. Louis Music Co.