On second thought it may have been that the Regency were only available with a brass buckle and not silver...
You were correct. G&G didn't offer Brass buckles with Mayfair or Grosvenor when we met in London. However, Tony Gaziano has just told me that they will do soon so any MTO Grosvenor or Mayfair ordered from now can have a choice. Nickel or Antiqued Brass colour buckles. They don't have them yet but if a MTO is placed now they will be in stock within the time it takes to make them.
Nick was at the factory today and was kind enough to snap previews of my inbound damage. I'm in transit on Tapatalk so hopefully his iPhone images size correctly. Will take some proper pics when back home.
Mayfair MH71 in vintage pine
St. Tropez KN14 in hatch grain
Mayfair TG73 in black
Arran TG73 in vintage rioja
Burnham TG73 in vintage oak