"A satirical engraving of the quaint English custom of "wife-selling", which wasn't quite what it sounds like, but was more a ritual among the non-genteel classes (who couldn't possibly obtain a full parliamentary divorce, allowing remarriage, according to the pre-1857 laws), to publicly proclaim a dissolution of marriage (though not one that was really recognized by the authorities of Church and State). 1820 English caricature (even though the sign says "Marché de Bêtes à Cornes")"
The note goes on to give this wonderful quote from 'an 1815 newspaper':
"On Friday last [September 15th 1815] the common bell-man gave notice in Staines Market that the wife of ---- Issey was then at the King's Head Inn to be sold, with the consent of her husband, to any person inclined to buy her. There was a very numerous attendance to witness this singular sale, notwithstanding which only three shillings and fourpence were offered for the lot, no one choosing to contend with the bidder, for the fair object, whose merits could only be appreciated by those who knew them. This the purchaser could boast, from a long and intimate acquaintance. This degrading custom seems to be generally received by the lower classes, as of equal obligation with the most serious legal forms."
More information on this excellent custom can be found on Wikipedia, here.
Personally, the only thing that I can see wrong with the return of the custom would be the effect it would have on divorce lawyers' fees...