Your violin is a copy of an Amati instrument. Antonio Amati died in 1607 and Hieronymus Amati died in 1631.
Your copy was likely made in a factory in Germany around the turn of the 20th century. Many factories operated in the towns of Markneukirchen, Klingenthal and Mittenwald, all producing thousands of copies of the works of the masters, primarily for export. They are still considered to be good student violins today (not for concert performers)
If your violin is in very good condition with very good tone, its current retail (replacement or insurance) value is approximately $1,000. If you were to sell it, you could expect to get the fair market (private sale or auction) value of approximately 40% of the retail amount, or $400, depending on location and actual condition.
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