GSA Smart Collection

Certified Mail Envelopes with Return Receipt (SDC-3810)

Certified Mail Labels with Postage Receipt (SDC-3710)

Certified Mail Labels with Return Receipt (SDC-3930)

Certified Mail Labels (SDC-3610)

Original NetStamps with Address Labels

#10 Certified Mail Window Envelopes for Electronic Return Receipt (SDC-3510)

Original NetStamps Sheets

Patriotic NetStamps Sheets