Oscar Peterson, Oscar Peterson Plays the Richard Rodgers Song Book, 1959 on Verve.
My copy is a slightly later (early 60s) pressing by MGM after they acquired Verve in 1960.
Rodgers is maybe less well known than Cole Parter or Gershwin (other “song book” releases) but some great songs here: My Funny Valentine, The Lady is a Tramp, Blue Moon, Bewitched.
Pressing is older than I am and sounds great