A long-winded speculation and explanation of what you might have there:
RCA kept a lot of the classical recordings from that era in print for many years. Judging by the looks of the cardboard of the cover that might be an early one. The earliest and most prized are the so called shaded dogs, they have a picture of Nipper (the dog in front of a Victrola) with a shaded background on the record label. Next were the white dogs, the Nipper logo but no shading around him. Then came the Red Seal era without the picture of Nipper on the label.
RCA was one of the real pioneers of stereo recording and their early classical and pop recordings under the Living Stereo banner were some of the most natural sounding records ever committed to tape and pressed into LP's. If you have a shaded dog pressing in good condition, that is a mighty fine record. But the later pressings and the Living Stereo CD reissues are very good as well. The most recent SACD reissues of the Living Stereo recordings are the first to match the original pressings in terms of sound quality.