This photo shows Mr. Reinbach dressed in "generic baseball uniform," topped with "typical cap," and sporting a "standard 70s mustache." All you need is a Schlitz sign to capture the whole decade.
Mike's actually wearing a 1974 Baltimore Orioles kit with the hat logo airbrushed off. He started that season on their opening day roster, but didn't perform well enough to stick around--.604 OPS in 12 games--and finished up with AAA Rochester.
Prior to the 1970 Miami stint, Reinbach played with the Alaska Goldpanners in 1969 (team photo), a long-lived amateur team that recently celebrated its 50th anniversary. Alums of this remote franchise include several famous MLBers, including HOFs Tom Seaver and Dave Winfield.
UPDATE: Learned this set's for the Rochester Red Wings (of the International League), so updated the post title.