Hi Don - this is great! Thank you for your contribution to our Mahler thread. Please feel welcome to add your wealth of knowledge anytime.
I believe this is the Maurice Abravanel, Mahler 2 that you mentioned. Great cover.
Fwiw, this LP is still available but stock is low at Acoustic Sounds.
Another record from Abravanel and USO also available is Mahler's 8th, Symphony of a Thousand. This is also available as HDAD 24/96 24/192 (DVD Audio)
Both from the Vanguard label / Classic Records
P.S I'm tickled to see another vinylist who enjoys Slatkin's Titan on Telarc.