The University at Buffalo's Anderson Gallery plans to display the works of the Spanish surrealist for two months this summer.

The university says in a release that the artist gave the late dermatologist Edmund Klein the personalized drawings as payment for treatment over nearly a decade, beginning in 1972.

The drawings were made on pages from sketchpads, art books and a paper Dr Klein had written. Some depict angels and bear dedications to the doctor.

Dr Klein and his family stored the drawings in a bank vault. His widow, Martha, revealed their existence last summer. She says she wants to sell them.

Klein died in 1999, a decade after Dali. -- AP