Related Clues:

• Warehouse qty.
• Postmarked pieces
• Common pg. size
• Push the envelope?
• Vanna revelation: abbr.
• Post office delivery
• Init.
• One photocopier tray: Abbr.
• It's sometimes certified
• Storage unit: Abbr.
• Garb for Galahad
• Quaint communication: Abbr.
• Posts: Abbr.
• Junk in the box?
• P.O. pieces