And while I'm asking random questions, where did the cliche of the anarchist with the spherical black bomb with a fuse coming out the top come from? This icon was used for system errors on the original Mac, but it must be way older than that. http://en.wikipedia.org/wiki/Bomb_(symbol)
In 1922, Buster Keaton's "Cops" features a bomb-throwing anarchist: http://images.greencine.com/images/article/keaton-bomb-2.jpg (Buster unknowingly lights his cigarette with it)
And 1919, a 'Red Scare' cartoon: https://en.wikipedia.org/wiki/File:Come_unto_me,_ye_opprest....
But this has got to be older, as this type of throwing bomb was obsolete in the early 1900s. There's the Haymarket affair (1886): http://law2.umkc.edu/faculty/projects/ftrials/haymarket/just...
I'm guessing that's the incident that ties this bomb to political activists. But the design is a lot older; the badge of Napoleon's grenadier guards is an image of this type of bomb, but the round throwing bomb is way, way older: https://en.wikipedia.org/wiki/File:Ming_Dynasty_fragmentatio...
Recognisably the same bomb, from the 14th century.
There is an idea that it originated in WWII, when some German bombs featured overly complicated designs that purposely didn't explode all the time, because a live bomb is arguably worse than an already exploded bomb.