I remember when I was a kid in the early 1970s there was a grocery store (Town and Country, it was called, and it still exists) in Bozeman MT that sold limited homebrew supplies. They had Blue Ribbon malt extract, dried yeast packets, hops in baggies, and bottle caps. Nothing refrigerated. The only equipment I remember seeing for sale was a hydrometer.
They only sold them for a year or so, and then they stopped.