First time accepted submitter The0retical writes "A couple of mine-sweeping dolphins dredged up what is known as a 'Howell torpedo' dating from 1870 to 1889. Only 50 were ever produced, this being the second example known to exist. The 11-foot-long brass torpedo had a maximum range and speed of 400 yards at 25 knots. The new example will be displayed at Naval Undersea Museum in Keyport, Wash. alongside the only other example."
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