Forgive me if I missed it, but Mr. Ford's Model T (Any color, as long as it's black) had an individual spark coil for each cylinder. 6V battery though, not 12V.
The cute little spark coils were each in a little wooden case, and for decades they were employed by jokesters who wanted to "energize" unwitting victims, either human or animal. I'm sure the coils can still be bought at antique car parts shops.