Pope Alexander VIII: A Document Signed as Cardinal Ottoboni

The artifact is a letter signed by Cardinal Pietro Ottoboni, the future Pope Alexander VIII (1689-1691).

The letter is in ink and is signed by the Cardinal and dated July 21, 1668, in Rome.  The embossed seal, which can be seen very clearly,  has his coat of arms and is the same one he used when he was elected pope the following year.