They are still in excellent condition for age. Reference books indicate Kokomo introduced this pattern in 1889 and I believe they discontinued production in 1905, so pieces are at least 117 years old.
Pattern features embossed ribs or columns with x's. Moulds went from Kokomo to Federal Glass in 1905. They have often been used for many years and can have normal signs of wear. A Wonderful addition to any collection!