it could be two long-haired lovers (from Liverpool?) holding hands. Looking closely, the right-hand one could even be looking out of the picture and winking. Come on, all armchair psychiatrists; it's more fun than wake turbulence.
Did you ever see a Punch & Judy show? Could be. It could also be Harry Corbet with his fingers twiddling Sooty & Sweep. From your Liverpool comments I suspect you might be old enough to remember.