The first actual vinyl album I bought with my own (pocket) money, of which there wasn’t much, was the OST of Fistful of Dollars, in 1967, then later on in 1970 it was Bridge Over Troubled Water on cassette, then ELP Pictures at an Exhibition , also on cassette, and Tangerine Dream Ziet on German import vinyl from Virgin Records in Bristol, around 1972.
First single was Fleetwood Mac Albatross.
Most of the early albums I had, like Zep 4 were cassettes taped from mates vinyl copies, made by holding the mic of my Philips N2204 portable recorder in front of the speaker of the family Bush record player!