What Are Imperali Cards?

1
I was wondering in if anyone knew what Imperali cards are?
The wrong name?
This game was played in Milan at Pavia Estate of Marchese Di Visconti with English Farmer Arthur Young in 1788.
I do not know if this is the name of the Game, or the type of cards.

~Lorredan
The Universe is full of magical things patiently waiting for our wits to grow sharper.
Eden Phillpotts