The image below is of the back of a mahogany side chair from the third quarter of the eighteenth-century.
At first glance, the well drawn blend of gothic and rococo carving appears to be competently executed. However, the foliate scrolls on the extremities of the crest rail are asymmetrical.
The right hand scroll would have been carved first and presumably, after the discrepancy became apparent, the left hand flourish was intentionally left untouched.
The lapse is quite endearing.