Kenmore of that era is almost certainly Korean, (LG/Samsung). Yet another desperate Sears cost-save attempt from the earlier, better-quality Whirlpool-made units they built their good name upon.
Very good article until I got to this line:
"There’s not really much of a market for vintage refrigerators—they’re too small and too power-hungry..."
1) You haven't seen what people ask for such things on FB/Craigs, etc. There exists an entire subculture who restore them.
2) Typically they are smaller, although larger versions bring the highest prices. Most people either use them as back-ups for when the 5-year old model dies, or if they use it as a primary unit, they have a freezer in a pantry.
3) "power-hungry" is a myth that electric utilities like to exploit so they can pay $50 to destroy an old fridge in lieu of upgrading their own equipment; basically appliance cash-for-clunkers. The kernel of truth is that 60s/70s defrosting models draw hundreds of watts during their (short) defrosting cycles. A watt in 1950 is equal to a watt in 2021, even in the era of Covid-19. An electrical data plate and/or a wattage meter will tell the real story. Having said all that, I have a '64 Frigidaire-by-GM range and worst-offender 20 cuft self-defrosting fridge as primary appliances. I see no appreciable difference in my electric bill compared to my neighbors who throw away "durable goods" like Kleenex and ohh-and-ahh at my kitchen that looks like a cruise night of chrome, stainless and metallic-coppertone.
...and just a minor aside to one of the comments about mechanical latches. Again the kernel of truth is that some-kid-somewhere likely did climb inside an old fridge at a dump, or placed out for trash. That's why its typically a local ordinance to remove the door when tossing one. However the odds of a kid removing the food and shelves inside an operational unit, then latching the door shut behind them are about the same as them dragging a desktop PC into the bathtub to play Fortnite. Low enough that I manage to sleep at night.