There's a note in #PatternsOfFashion that the Snowshill Manor riding habit may have been worn open over a waistcoat. I think I can make a strong case that it was.

I cut the original pattern with no fit alterations besides straightening out the side back seams (they are slightly curved in the original). You can see that the original pattern fits me okay through the back (it bunches under the arms because the seam allowance is in the way).

#18thCenturyFashion #HistoricalCostuming #18thCentury