Klavierkonzert Nr. 1, B-Moll, Op. 23

—On sleeve— Printed in Germany by Neef, Wittingen — There is a golden Edison sticker attached on the front. Liner notes in German, translated in English and French Spine: Stereo   Tschaikowsky: Klavierkonzert Nr. 1 B-Moll · Martha Argerich   2530 112 No label code —On center labels— D. P. Made in Germany ★ — On side A, there is a double pressing ring at 20mm and 23mm diameter. On side B, there is a pressing ring at 20mm diameter. There is a faint embossed outer rim starting to ramp up at about 68mm diameter.