yes, an unbranded likely Chinese made horn. Used value very low, perhaps $100-125 given the lack of name engraving.
If it has a country of origin stamped on it someplace, usually down near the serial# if it has one (below thumbhook)....and it reads Taiwan or ROC...then maybe worth $200...
If you are a player or know someone who is, and can confirm it plays alright, maybe add another $50 to value.