A few recent posts here have nudged my recall and creative bent some. Enough for me to pull some gear out of my photo cabinet and set up a background.
This first one is a pic of my two oldest SLRs, a mid-to-late 60s Spotmatic and an early 60s Nikon F with the original non-TTL Photomic finder. The meter sorta works on the Spottie, and on the Nikon F, not only does it work, but it's accurate. There were two types of this finder. The first model has a semaphore used to turn on and off the meter. Essentially it just moves a patch of darkness in front of it to deactivate it. And the second one actually has an on-off switch. This is the first type with the semaphore. As for the Spotmatic, I know there have been a host of different models. This one just says "Spotmatic" and I'm assuming it's one of the earliest since it doesn't say SP or SP 500 or SP 1000 or some such. Its shutter speeds range from 1 sec to 1/1000. You'll note that I have an accessory cold shoe attached to the Spottie. I just leave it on the camera. That way I know where it is in case I need it.
I bought both camera bodies without lenses. For the Spotmatic, I hunted around on eBay a bit and found a clean 50/1.4 to fit. It isn't the 8-element one, sadly. For the Nikon, I already owned a couple of 50s with the prong, but at that time, the 50s I owned were all AI or AIs. Nowadays I own one 50/1.4 that is pre-AI, but it is a very late pre-AI with the rubberized focusing collar, which just doesn't seem appropriate with this early camera. I grabbed the next best thing for this shot. My trusty old 55mm f/3.5 Micro Nikkor that I've dated to 1964. I've owned this lens for over 25 years and it's one of the sharpest lenses in my collection. It's a bit scruffy looking, but at least it's from the period.