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Your good and sincere friend
A very fine unmounted mint set of specimens with full original gum
A very fine mint pair with original gum
Plaster of Paris casts of Albert Pierrepoint's face and both hands
A stunning unmounted mint positional piece with full original gun
Albert Einstein handwritten ‘General Relativity’ mathematical manuscript Australia stamps Your good and sincere friendOriginal unsigned mathematical manuscript written by the German born physicist, humanitarian and Nobel Prize winner Albert Einstein (1879 1955). The unsigned and undated manuscript features nine lines of intricate equations in Einstein's crisp handwriting. Between the seventh and eighth lines, Einstein has written in German, "in Special system." These equations are thought to relate to his 'metric tensor,' which expresses space time curvature in the
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