Not from a text scanned by me, but from a book I downloaded from archive.org, titled _Survivals of Roman Religion_:
a chapter titled "The Egyptian Dieties: Isis, Serapis, and Harpo."

Reread and then reread again. Yes, that is what the text says.

Wander down the page a few lines and find the word "crates."

Still...

Honk if you love Harpo!