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I don’t think so. They are fairly close to the foreground subject, and the fence in the background obviously is out of focus.
Also, in 1912 [there were a myriad of cameras, accessories, films and such](https://www.google.com/search?q=1912+cameras&safe=off&client=firefox-a&hs=8KH&rls=org.mozilla:en-US:official&tbm=isch&tbo=u&source=univ&sa=X&ei=4z3LUa_jMYfa0QGilIH4Bg&ved=0CDUQsAQ&biw=1161&bih=770). So I think almost anything could be possible, if one knew the techniques of the time.