Yes, there are counterfeit and fakes out there. Its hard to determine when these cards were produced, but almost assuredly they were done after the glory days of the lithographer's art. Today some people with a half decent scanner and color printer seem to think that gives them the right to knock off whatever they choose. The fake cards are almost always easy to spot. The first clue is the reverse.
Fakes are usually quite white, while a vintage card is a greyish yellow.
Secondly, a knockoff will be blurry or indistinct. This is especially noticable on the fine type of 'A Mutoscope Card'.