Price of a LP in UK in 1973

The very first album I bought was in and around 1973 (possibly 72), which was David Bowie's Ziggy Stardust.
If I remember correctly, I'm pretty sure it cost me around £5. I still have it, but there's no price tag on it.

A Deep Purple one I bought around that time has a £5.99 sticker on it.

@lordyaswas : Lots of thanks, really ! I'm writing sthg about this period and I try to be as accurate as possible. Have a nice day !

Albums were generally about £3.99 in 1980 so there's no way they were a fiver in 1973. Deep Purple's Made in Japan, released in 1972 was a double album and had a price of £3.10. I seem to recall that it was promoted as being a double album for the price of a standard one.