Thanks. The MGM LPs were put out in the states, presumably while Shearing was making LPs at Capitol. There were at least seven collections, probably more. The material is all the early pre-Capitol quintet from the late 40s and early 50s (a few trio and solo sessions too):
You're Hearing George Shearing
A Shearing Caravan
I Hear Music
Touch of Genius
An Evening With GS
When Lights are Low
and ??? - some collection of all the Latin stuff from this period.
Most sound like they were transferred from 78s. There are problems throughout - "Cool Mambo" was transferred from a disc with a skip, aforementioned speed issues, etc., but they can easily be obtained in the states for short dough.