"People of the same trade seldom meet together, even for merriment and diversion, without the conversation ending in a conspiracy against the public, or in some contrivance to raise prices."
It marvels me how can psychologists get anything out of that. Most of the cards just look like butterflies.<p>Anyway, if the cards are public there is no reason for them not to be at wikipedia. I also didn't know the images were always the same.