This is larger, 1-5/8" dia. milk cap from same issuer as previous item #2086, but from totally different numbered series of 20. Milk cap features same classic full body image of Superman w/hands-on-hips w/"Roberts Milk" imprint at top center w/coded message below this. "Decipher In Code Saturn" text appears below this and milk cap has "Code Note No. 3" notation at right. Bottom text reads "Save Series Of 20 Notes For Surprise." Reverse is blank. Milk cap has even moderate aging, more noticeable on reverse and has has original small staple below die-cut tab at center. Fine/VF overall. Very rare series, we know of only two other examples (No. 8 Venus and No. 13 Uranus). First we've offered of this variety in our 48 years. Franco Toscanini Collection.