- Short story:
From the third TV movie (not series) "The Six Million Dollar Man: The Solid Gold Kidnapping
- Long story:
This is a photoshoot that took place in August 1973.
Prior to the series that premiered in January 1974, Universal had produced 3 full length TV movies.
They finaly green lighted the series after
the third movie had aired in November 1973 (The Six Million Dollar Man: The Solid Gold Kidnapping).
The TV movies had some promotional photos "James Bond" style, while the series photoshoots focused on the astronaut Col. Steve Austin.
So my best guess is that this "James Bond" style photoshoot, done in August 1973, was made to promote the third 6MDM TV movie: "The Six Million Dollar Man: The Solid Gold Kidnapping (1973)".