Recorded on May 14, 1958.
This almost 100% certainly manufactured in 1958 but was never actually released commercially with deep groove labels. The first commercial release is 1961 with non deep groove labels.
47 West 63rd Street address on both labels, no ® under the e in Blue Note and deep groove on both sides.
"P" (or "ear") for Plastylite record plant inscribed in the matrix along with stamped RVG on both sides.
Cover has no Inc, in the address.