Back (apologies for my handwriting!)
The text of the postcard is
On this postcard you see Sebastian. Sebastian was happily free & living life to the fullest. Then one day he was captured, “broken,” and began his new life living in a stable.
But Sebastian didn’t like this cooped-up life. He got moody (see: the postcard picture). His owners felt bad and decided to let him free. He was too emotional!, they said, living indoors had made him … unstable.
Your daily dose of oy right there!