cliparts/4/f/b/a/clipart-semaphore-positions-4fba.svg image/svg+xml Open Clip Art Library semaphore positions 2007-12-10T01:36:22 http://openclipart.org/detail/9718/semaphore-positions-by-anonymous-9718 Anonymous clip art clipart externalsource flag flag image letter letter media png public domain semaphore semaphore signal signal svg