Following my previous post, Paul Rumsey identifies the mystery print as one from the hand of Georg Lemberger, an Austrian artist so obscure he does not even have an English language Wikipedia page.
The scene takes place in a fantastic forest. St George is preparing to face the monstrous dragon, hitting him with a spear, while the horse rears its head and front legs, according to the traditional iconography.
On the left the princess kneels in prayer.
The trees are particularly elongated, and seem to germinate the one above the other, waving their spectral fronds, like in a dream vision.
The feeling of being lost in the dark forest prevails and the work conveys a sense of the unknown, dominated by mysterious forces of nature.