Quote Originally Posted by slohairt View Post
It would be hard to say when any change in terminology occurred. Virtually every website or catalogue today refers to what I call the Regulation Doublet (or coatee) as the Regulation Doublet. The other variety, worn by bandsmen seem to be called a "Piper's Doublet" these days.

Le gach dhea-mhéin as fear Dhúin na nGall go fear Chill Mhantáin!
It seems virtually every supplier has their own name. Stewart Christie here in Edinburgh illustrate this as a dress doublet (note the belts worn over it and it is worn with a jabot and red waistcoat. They say the waistcoat can also be tartan to match the kilt or velvet or cloth to match the doublet). I think the "regulation" name probably came about because this was the required dress for Court (royal) functions and was called levee dress -