Maurers were made by the Larsen brothers, as were Stahls, Prairie States, and probably a few other labels. The general consensus seems to be that they were at least as high quality as anything made by Martin and are certainly good investments. I think they also tended to be more creative in some ways than Martin was. They made a lot of different style and sizes and did some outrageously ornamented instruments. Also made some interesting mandolins. They are scarce, however.
Sandy