Nice finds. I bet they have good weight to them. Both Newbury silversmiths. Did you know that Towle and Jones were partnered in 1857 until 1873? Pieces were marked Towle & Jones. So this dates your pieces to after that date. The A.F.Towle & Son mark was used from 1873-1880, after that they added "Co." to the end. The Jones mark was used from 1873-1905. So these date to the 1870's, coin silver was virtually replaced by sterling by then anyway.