Take a look at these clues for dating old brooches and pins. Trying to determine the age of an antique or vintage brooch? Take a look at these clues for dating old brooches and pins. Trying to determine the age of an antique or vintage brooch?
Seneca, South Carolina. Seneca is a city in Oconee County, South Carolina, United States. The population was 8,102 at the 2010 census.
1 Seneca Institute â Seneca Junior College, an African-American school in Seneca, South Carolina, from 1899 to 1939. 2  Seneca Academy, Darnestown, MD-a International Baccalaureate private school serving children preschool through fifth grade.