These chairs are actually called the Tolix A chair, designed in 1934 by Xavier Pauchard, in a small town in France. The names Marais and gunmetal were never actually used by Tolix.
Tolix still to this day describes their “gunmetal” finish as Brut Verni Brilliant, which is the lacquered coated steel chair, and Brut Verni Mat, which is the raw steel chair with no lacquer. The mat finish looks more like a colonial pewter color, while the brilliant finish give the steel a deeper, shiny quality.
Antiquaire is the only place in the country that can give you either choice, and with any height stools to match any finish!