Royale 1203 - Technobuskers

Royale 1203, Side A runout stamp/etching

Royale 1203, Side B stamped "1203B" + hand-etched symbol or badly drawn "33"?

Royale 1203 Opera House sleeve front

Royale 1203B, Side B mystery hand etching

Royale 1203 Opera House side 1 label