Comprising of:

1 - Archives des Sciences physiques et naturelles, Quatrième période, No.1 15 Janvier. Geneva: Bureau des Archives, 1910 and Fevrier 1910, binding with black faux leather to spine, orange & black marbled boards, gilt text to spine, 8vo, with original green printed wrappers to inside, small oval library stamps for 'r istituto veneto biblioteca scienze lettere' Albert Einstein, Le principe de relativité et ses conséquences dans la physique moderne. bound copy, From the collection of Einstein's “Swiss years papers”

First Edition of Einstein's detailed survey of his relativity theory.

2 - Archives des Sciences physiques et naturelles, Quatrième période, No.7 15 Juillet. Geneva: Bureau des Archives, 1910, binding with black faux leather to spine, orange & black marbled boards, gilt text to spine, 8vo, with original green printed wrappers to inside, small oval library stamps for 'r istituto veneto biblioteca scienze lettere' Albert Einstein, Considerations sur les forces ponderomotrices qui agissent sur des conducteurs ferromagnetiques disposes dans un champ magnetique et parcours par un courant, bound copy, From the collection of Einstein's “Swiss years papers”

3 - The Physical Review, Volume 49 Second Series Number 1 January 1 1936, black fabric to spine with gold text, blue marbled boards, Albert Einstein, Two-body problem in general relativity theory [p.404 - p.405]

4 - Canadian /journal of Mathematics, Volume II 1950, red fabric, gold text to spine, Albert Einstein, The Bianchi identities in the generalized theory of gravitation [p.120 - p.128]

5 - Science, published by the American Association for the advancement of science, January - June 1951, red fabric, gold text to spine, Albert Einstein, The Advent of the Quantum Theory [p.82 - p.84]