Thank you for submitting your item for appraisal. This appears to be an argentian folk art powder horn, depicting a gaucho on horseback, a dancing girl, a musician and an alligator, german silver or aluminum mounted. Hand carved by an talented artisan, possibly very late 19th century to early 20th century. The estimate is based on similar items sold at auction. As always "asking prices" in the trade can be higher and vary.