West Coast pressing variant (click here for East Coast variation) most easily identified for being a styrene (not vinyl) pressing and having slashes instead of hyphens in the publishing credits on the left side of the labels.
Barcode and Other Identifiers
Matrix / Runout (A side deadwax - scribed except for stamped MR in a circle): R1971A-RE (MR) ∆88047
Matrix / Runout (B side deadwax - scribed except for stamped MR in a circle): (MR) -∆88047-X R-1971-B