F4L1A1S1H4C3U1B3E1S1
20 points
FLASHCUBES is validvalid
FLASHCUBE, [n]
FLASHCUBE, a plastic cube containing four flashbulbs, rotated as the film is wound on [n]
FLASHCUBE, [n]
FLASHCUBE, a plastic cube containing four flashbulbs, rotated as the film is wound on [n]