Foofa
If you mean in the US, obscenity laws have been inconsistent and a lot of them were very local so didn't affect everyone evenly. Then there's always been that pesky things about defining what is and what isn't "pornography".
Anonymous
Porn at one time was played in theaters. I have a creepy uncle who use to tell stories of going to see "dirty pictures" as he calls them. I took me a long time to understand what he meant. I don't know if this was the 50s or 60s but it was a long time ago. The theaters were over in back ally type places and smelled of urine and other body fluids according to him. But, you had to pay to get in, I don't know about age limits to go in there, never asked and don't want to ask.
pit bulls bite
illegal but widely available as stag films at legion halls
John
No but there wasnt no internet back then, mostly magazines like playboy and stuff.
mokrie
There were no computers then. Porn was very soft core by comparison to today and some movie theaters ran them in bad areas. Some people set up huge projectors in their basement and ran old films that are laughable by today's standards.