The Oscar Wilde trade cards I've seen are all contemporary with his two American tours. The use of his image was intense but brief. Although there are many different examples, they tend to be relatively uncommon compared to other trade cards of the period, so I doubt any of them got extremely wide distribution. However, from the 1860s to the 1890s, Dickens' image was used more often. Twain's image was extensively used in advertising for a variety of products from the 1860s to the end of his life: trade cards, cigarette cards, playing cards, newspaper ads... all manner of advertising... I'm out of town at the moment, so unable to provide a count of the examples I have. I have a vague recollection of an article on Oscar Wilde's image on trade cards, or perhaps it was an article that included some discussion of Wilde's image used on some cards; it may have appeared in the Trade Card Collector's Quarterly (now defunct). I have a complete run of that journal, but cannot check it until I'm back in my office. Kevin Mac Donnell Austin TX