Front
Back (apologies for my handwriting!)
The text of the postcard is
Dear Ellen,
Theoretically, everyone knows what a bat out of hell sounds like.
What I’m wondering is, what does a bat out of heaven sound like.
Please get back to me ASAP.
Sincerely,
DumbFunnery.com OR @DumbFunnery
DumbFunnery 
Comments on: "Attn: Ellen (1/13/16)" (3)
Hmm, I suspect you don’t know what it means because I can’t type the word ‘bat’!
Haha, good question…I mean, do heavenly bays play the harp?
I don’t know what that means but it sounds poetic and pretty