Mailing Service Colorado

Stamps should be placed in the top, right-hand corner of the envelope. Standard, one-ounce letters that are being shipped within the United States need just one stamp. However, additional stamps will be required for letters and packages that weigh mo...

Stamps should be placed in the top, right-hand corner of the envelope. Standard, one-ounce letters that are being shipped within the United States need just one stamp. However, additional stamps will be required for letters and packages that weigh more than one ounce.