done by Adolf Hitler when he was a struggling student trying desperately to get into art school.

The 12 charcoal and crayon sketches cover "typical student subjects" and don't display a great deal of promise, Mullock's Auctioneers said. They include two drawings of an elderly woman thought to be Hitler's mother, as well as studies of objects, landscapes, models, and even a Roman senator.

All are signed and some even have Hitler's Vienna address, Mullock's said.

The sale also includes the original portfolio in which Hitler kept the sketches, which is signed and has his address, Mullock's said.