On hard copy store bought CD I have the Alban Berg Quartet
This box set :
I also have a couple other versions of No. 15 which is my favorite but I’m not sure what versions they are
I tried googling images and looking on Amazon but nothing rings a bell.
I know I bought my first copy of that over 30 years ago. I think I had it on cassette before that. I actually think I recorded it off the radio originally.