Guess this Amish Buggy

Know what this is?

Not an Amish convertible.

The picture was taken at an Ohio auction.

It is not a Swartzentruber buggy. Notice the yellow SMV triangle and small red reflector - or maybe that's a turn signal. Both are verboten to the uber strict Swartzentruber Order.

Gotta guess? Here's why it's used and it's name.
Since it was taken at an auction, you might guess it's for toting treasures. Right. This is a buggy for hauling items, namely pigs, sheep, and baby calves.

It's called a "top hack." Some...