a good pair of Gorham hand chased pepper castors

order numbers 170 (datemark for 1900) and S2902 (datemark obscured), height 3 3/4 inches, weight 4.42 oz. Troy, no monogram, a few very minor dents here and there but excellent overall condition. Why were these made in different years? We have no idea, but since both are special orders and should show up in the records, a curious customer could email the Grand Pooh Bah of Gorham silver and obtain (for a fee) the costing report.