Albert Einstein autograph and formula

A very nice Einstein autograph on old paper with a formula of some kind. A very unique item and obviously one of a kind.
Einstein was born in the German Empire but moved to Switzerland in 1895, forsaking his German citizenship the following year. In 1901, he acquired Swill citizenship, which he kept for his entire life. In 1905, he was awarded a PhD byh the University of Zurich. In 1933, while Einstein was visiting the United States, Adolf Hitler came to power. Because of his Jewish background, Einstein did not return to Germany. He settled in the United States and became an American citizen in 1940.
The autograph is in pen, it is double matted to 11x14 with a photo and framed and ready to hang. It comes with a Certicate of Authenticity from a board certified and court approved forensic handwriting and document examiner that was employed buy the secret service for years examining questioned documents. It is guaranteed for life.