This sample of 370 Mira variables that are likely near the Galactic center (GC) has been selected from the OGLE and BAaDE surveys based on their sky coordinates, OGLE classifications, and BAaDE maser-derived line-of-sight velocities. As the distance to the GC is known to a high accuracy, this sample is a test bed for reddening and extinction studies toward the GC and in Mira envelopes. The reddening laws in the circumstellar environments of our sample and the circumstellar environments of Large Magellanic Cloud Miras are strikingly similar despite the different metallicities of the samples. The sample is used to develop period-magnitude relations for the mid-infrared WISE and MSX bands.