The U.S. Military Academy says the lead box contained six silver American coins dating from 1795 to 1828 and a commemorative medal.
The U.S. Military Academy unveiled the contents of a nearly 200-year-old time capsule on Monday.
The two helicopters from the 1st Attack Battalion, 25th Aviation Regiment at Fort Wainwright collided on April 27, killing 3 soldiers.
Data recorders will be sufficiently installed on at least six kinds of commonly operated tactical vehicles.
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