How can you determine if your Straduarius 1777 violin has any value?

It is extremely unlikely that you own a Stradivarius 1777 violin. Stradivarius made violins from 1666 until his death in 1737. It is widely believed that he reached the pinnacle of his craft in the 1710s and 1720s. His instruments and those of his contemporaries are generally known as “Old Italian instruments” and are extremely valuable and sought after by collectors and museums alike.