Sgt. Pepper by The Beatles on Capitol SMAS 2653.  What else can be said about this iconic album! Considered to be the most influential and famous Rock album ever, with sales of over 30 million copies, I doubt I have any insight to add,  other that to say if you haven't hear it then make sure you do.

Still in the psychedelic genre, we have the next Beatles album, the soundtrack Magical Mystery Tour.  Another album that needs very little said about it.  My copy is the less common mono version; by 1967 most demand was for stereo productions, so less mono albums were issued.
This is a Canadian pressing in VG+ condition, with the 12 page booklet included.  It is the first issue (all subsequent issues were in stereo) on the colourband label MAL 2835. This is certainly among my favourite Beatles albums, with so many great songs.

The Beatles, also commonly know as The White Album, was a double album released in 1968 and is my favourite of the Beatles albums in my collection.  Back in the USSR, Glass Onion, While My Guitar Gently Weeps, Rocky Raccoon, Sexie Sadie, Helter Skelter etc etc. Great album.  The first issues were numbered and the first pressings had side 1 song 6 mislabelled as Bungalow Bill instead of The Continuing Story of Bungalow Bill.  This copy is a later, unnumbered, pressing on Apple Label SWBO 153.