Background of this racquet:

In the early 1990s, German sculpting artist Antonius Schoofs created a Boris Becker bust for the city of Leimen, Becker's hometown. In January 1992, he officially handed it over in the townhall of Leimen, in the presence of Becker's parents Karl-Heinz und Elvira Becker. They liked the bust of their son so much that they gave a personal racquet from Boris, which he had previously played at the US Open 1991, to Antonius Schoofs as a gift.

Above the grip there is a small sticker with a handwritten note from Karl-Heinz Becker saying "Boris Becker US Open New York Aug. 1991". And on the cover there's a genuine handwritten Boris Becker signature.

Below you can see the front page of a respective Leimen townhall magazine showing the presentation of the bust and on the photo below Antonius Schoofs after having received the racquet gift from Karl-Heinz and Elvira Becker.