A previously-unseen photograph of Albert Einstein aged five is going up for auction
A fascinating collection of letters by Albert Einstein and previously unseen pictures of the mathematician as a child are going on sale for £250,000.
The archive includes a never-before-seen photo of Einstein aged five and the only surviving letter he sent his father.
The image is of Einstein in Munich in 1884 and shows him as a young boy with neatly combed and flattened hair.
A second black and white photograph depicts him 11 years later when his dark curly hair had grown to the wild and straggly lengths he became known for.
The items belonged to his younger sister Maja Winteler-Einstein and her husband Paul Winteler - and have been passed down the family since her death in 1951.
Maja fled Europe in 1939 to join her brother in Princeton in the US, and lived out her last years with him after a stroke meant she was too ill to return to Germany after the Second World War.
Many of the letters in the sale are unpublished and shed new light on Einstein's deepest thoughts as he escaped Adolf Hitler's tyrannical Nazi regime.
A sombre letter from Einstein to Maja penned in September 1933, just months after Hitler seized power in Germany, spoke of his fears for the future.
In the letter, which is valued at £6,000, Einstein speculates whether he could ever return to Germany again and observes 'the only unshakeable things are the stars and mathematics'.
He writes: 'What will happen, if we come back from Princeton next year? Will we actually be able to do that? What will it be like there? The only unshakeable things are the stars and mathematics.'
Einstein is pictured aged 16 in 1895 (left) and aged 67 in 1946 (right) in the photo collection
Einstein is pictured in the middle of reporters in a photo taken in New York in December 1930
Another heart-breaking letter, sent by Einstein to Maja on January 5, 1937, with an estimate of £3,500, captures his sorrow in the immediate aftermath of his wife Elsa's agonising death after a long illness on December 20 the previous year.
He writes: 'So two lung infections added themselves to the series, and the second killed her. She struggled hard and looked death in the face with clarity, even at the end wished for it.
'The nightmare of her suffering still hangs with continuing strength over Margot (his step daughter) and me and at night we still painfully listen out