His Masters Voice was the essential channel for 60’s US Impulse recordings to UK jazz fans. Pressed by EMI, Hayes, they were mastered locally from copy tapes from the US, and therefore lack the RVG stamp found on US Impulse. That aside, they are excellent pressings sonically, and are found in both mono and stereo editions. Though second to and less desirable than original US Impulse of the Am Par and ABC Paramount years, they are vastly superior to the woeful later reissues of Impulse recordings.(See the UK labels section under the Impulse label guide)
Aside from Impulse, HMV had an active Jazz catalogue in its own right publishing Verve Recordings.
HMV Stereo Pale blue/Gold rim/ Nipper – Verve
HMV Verve Series (purple/ gold font) mono UK 1961
Classic large Nipper on Red label
More…as I get around to it.