Mauveine samples stored in museums in Sudbury, Bradford and Manchester are similar and are shown to be rich in mauveine A and mauveine B by liquid chromatography-mass spectrometry. By varying the aromatic amine composition of W.H. Perkin's 1856 patented method of mauveine synthesis, it is shown that they were not made by this method as W.H. Perkin disclosed it. An explanation for this is described.