It says 'Stereo' on the sleeve but 'Mono' on the labels.
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LABELS:

Made in Austria
Rights Society: Austro Mechana
Matrix / Runout: 6053 004. 1 (Label, side A)
Matrix / Runout: 6053 004. 2 (Label, side B)
Matrix / Runout: ℗1972 CM E AA 6053004 - 1F (Runout, side A, stamped)
Matrix / Runout: CM E ℗1972 AA 6053004 - 2F (Runout, side B, stamped)