could be ITC Anna Pro

edit: Nope

maybe it's the Image Club or URW? version...not sure where
to view that.

It's not the Image Club version of ITC Anna. Ours matched the original (digital) ITC-supplied character set. No alternates like that.

Does ITC Busorama Medium have the right 'ingredients' to cobble up the oddball letters?

It looks like Selznick Normal by Nick Curtis. You can download it free here

There's no previews on the site, but here's your sample: