9. Einstein (Albert) Die Grundlage der allgemeinen Relativitätstheorie, in Annalen der Physik, 4. Folge, Band 49, 7. Heft, stamps on verso of title and at end, marbled boards, morocco spine-label, [Printing and the Mind of Man 408], 8vo, Leipzig, 1916.
est. £500 – £700