I am looking for images in the history of film that visually communicate "thinking" with a simple shot of a face and a Voice Over. Know any?

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I’d think you could take cues from Citizen Kane, right? I seem to remember narrative-as-inner-monologue being popular in that era of film, but it’s been a while since I did film studies.

Pushing Daisies and Arrested Development also come to mind, but that’s ore contemporary.

You can’t go wrong with Monty Python’s Bicycle Repairman sketch. There’s two instances of Michael Palin’s character obviously thinking with a VO under it at :25 and :35, and it was shot on 16mm. Hope that helps.

The original cut of Blade Runner has several, the best at the end when Roy Batty is dead.