I've seen these before. These are actually antique taxidermy shots aren't they?

No, the squirrel was alive. And it's not that long ago, like the 1960s or something.

1940's, actually. Tommy - Futility Closet

Well, he's taxidermied now

Tommy Tucker: Eternity’s satin doll of a squirrel is...

cat

Thanks for providing today's rabbit hole!

You're welcome