Citations:a nod is as good as a wink

English citations of a nod is as good as a wink

• 1833, Joseph Ritson, Esq., The Letters of Joseph Ritson, Esq‎^[1], volume 2:

  As writing seems to be attended with some difficulty if not uneasiness, you have only to put down a figure of 4 or 5 before a cypher to satisfy me of the verity of the matter: a nod, you know, is as good as a wink to a blind horse.