Re: 1970’s ads, my dad had a Beseler enlarger. He in fact had a whole darkroom set up in our house. We enjoyed many wonderful hours taking black and white photos and developing them.
The digital age is exciting, but nothing beats the tactile feeling of swirling a piece of photo paper in the finisher and hanging it up to dry :)
I remember the first time I was successful rolling
film on that reel to make negatives,kinda tricky
There was a photo lab at Ft Bragg that I spent many
hours at..the only cost was the paper.
They had those Beseler enlargers there