Assertion: tusculum whistle | /r/MadeOf | brass
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Source sentences:
text: There are bone whistle-like instruments that have been found from 180,000 years ago; more recent bone flutes have been found in Dublin from the 12th century, and the Tusculum whistle in the Museum of Scotland made of brass or bronze, found with pottery dating from the 14th and 15th centuries (the Tusculum whistle, excavated in North Berwick in 1907, is 14cm long and has six finger holes).