Testors same as Model Masters?

The smaller bottles are from teh original Testors line of paints and date back to before Testors came out with their Model Master line. They are not matched to any FS standard. They are pretty much generic colors. The Model Master line came out later and was matched to FS standards. The orginal Testors colors and first Model Master Line (there is now also a MM II Enamel line and MM Acryl) seem to be of the same formula, pigments, solvenst, carrier, etc. The MM II line appears to be slightly thinner in consistency and expanded the colors available in the MM line.