This is a vintage Oscar Schmidt Autoharp, a musical instrument with 15 keys and 36 strings. It features a unique design with a combination of keys and strings, allowing for a wide range of musical expression. The autoharp is housed in a protective case for safekeeping and transport. Oscar Schmidt is a renowned manufacturer of musical instruments, known for their quality and craftsmanship. This particular model is vintage, indicating it was produced in a previous era, adding a historical context to the item.