Pjank & Polka

This release has: - White shell with no circled "+"'es. - No text on shell Other release found here [r24872918] has: - Grey shell with circled "+" in all corners and at bottom on one side. Other side of shell has a large circle at bottom centre. - Text on shell: "Pat. no 27777 A/76-21919 A/77". Dolby System Made In Denmark By Holm Cassette