Good, you have the original edition then! Great session!
Now listening to:
The Swingville All Stars 'Rockin' In Rhythm' (Swingville red label)
with Taft Jordan, Hilton Jefferson, Al Sears, Don Abdney, Wendell Marshall, Gus Johnson! Oh yeah
The Slide Hampton session is absolutely FANTASTIC, in fact more than an octet with euphonium and tuba, huge sounding group. You were spot on there !
The Londons are superb sounding LPs. Usually in my experience significantly better than the Atlantic/Jubilee etc. issue equivalents from the US.