That is a hare wearing a waistcoat, and carrying a watch.
Case for a Rookie Hangman (1970) is nominally a Gulliver's travels adaptation, but is also inspired by the works of Kafka and yes, Carroll.
More on this soon (hopefully!)
I only found out about this after reviewing Valerie and her Week of Wonders and Daisies, so I guess reviewing old Carroll inspired Czech films for down the Rabbit Hole Project was a really good idea!
Image via Second Run DVD, who have listed this for release soon...
