Bach's Corrected Copy of the Italian Concerto

[John Ruggero]

I am looking for Bach's own corrected copy of the first edition of his Italian Concerto, which is part of his Clavier Ubung Part 2. I read that it has the following catalogue number in the British Museum Music Library: K.8.g.7. but so far I have been unable to access it there. Thank you.

Edit: The British Library has informed me that this item is is not digitally available online, so I withdraw my request.