The Spiral Galaxy stamp is issued in a pane of four and costs $10.10, matching the price of the Priority Mail Flat-Rate Envelope. The Star Cluster Priority Mail Express stamp features IC 348 ...

Changes require approval by the Postal Regulatory Commission. If that happens, mailing service product prices would increase ...

The priority mail flat rate also decreased by about 1.7% beginning in January. A full list of the changes going into effect in July can be found at www.usps.com.