'67 Dart - No stop lights, turn signals on but don't flash

Mattax thank you for diagram and link.
Krooser I'm not too sure of the bulb number but noted for later, thank you.
RedFish Thank you for ashtray receiver example, I'll check around that territory further, I'm pretty sure that there isn't a flasher there. A lot can happen to a car in 53 years....
Mike69cuda I'll do the wire touching check, sounds like this is the turn flasher then but will look closer.
To check the flasher operation on the bench, I could wire two bulbs in parallel and flasher in series to those, and put across a 12V battery?
The flasher functions as an interrupter switch within the circuit, bulbs should flash?