Can you guess the subject of this photograph?

From an advertisement for Brown, Barnes & Bell (photographers in Liverpool, we presume) comes an optical illusion ca. 1890 that is half elephant man, half... well... something else. We don't want to spoil it. Check below the fold for the big reveal.

One more time. Here's the original view:

Can you guess the subject of this photograph?

Aaaand the reveal (for those having trouble guessing the subject):

Can you guess the subject of this photograph?

Funny how a little perspective can be the difference between a weird case of pareidolia and a cuddly household pet.

[Spotted on Retronaut]