Based on a review of the literature (TSD, Shave Nook, Shaving Room, DFS, Sharpologist and more) I have the 2013 baseplate and an approximately 1mm wider cap than the 2013 cap measured for the Shave Nook review by Samjax. Model changes since 2013? Random cap procurement by Muhle? The cap shape/curvature is certainly as important as cap width, but I have no way to compare that parameter. So I guess mine is either a mutant or an unremarked model change.