Many expert believe that engraving was originated By goldsmith to record their work.
Back then, it very common to engrave some sort of symbol that prove the ownership of the gold.\
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Answer:
13, 14, 17, 18, 19, 20, are all correct
Explanation:
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The aspect of of instruments that improved during the Romantic period was the valves. The correct answer is D, valves.
Answer:
Is this like, free points or something?
Explanation: