My first impression was Victorian dump too.

It's the right colour and it's got different sorts of bubbles in it.
I think there are two "propellors" - the air bubble decor on top and the "wheel" of 4 elongated bubbles.
It doesn't seem very "Caithnessy" to me when I enlarge the pics though,
not that I know much about pwts.
Sorry, can't really help you much at all.