Robert Christy, comp. Proverbs, Maxims and Phrases of All Ages. 1887.

Incongruity

A velvet saddle does not fit on the back of an ass.Hungarian.

It is much like a blacksmith with a white silk apron.

It looks as well as a diamond necklace about a sow’s neck.

The pack-saddle has been put on the ox.Cicero.

Ye drive the plough before the owsen.