Hung out to dry; ASK THE ANTIQUES ROADSHOW EXPERTS.
I'd love to know date and maker.
A I'm afraid this mark doesn't mean anything to me, so I suspect the head is by a relatively modern maker copying the head of a Gebruder Heubach doll. It would certainly not have been made to be displayed on a stick, but, after firing, the heads were often perched on sticks to dry. This example must have left the factory in that state.
The dark brown colouring has not been fired, simply painted onto the once-fired bisque head. It's therefore prone to flaking. The eyes have also been painted straight on to the bisque. Your doll's head is worth around pounds 20.
Questions taken from the current issue of BBC Homes &Antiques magazine - on sale now, pounds 3.30