Related Clues:

• Store, as a hose
• Curl up
• Form a spiral
• Corner piece?
• Notary public's device
• "Forever" post office product
• Lie like a snake
• Slinky shape
• Impress with a mark
• Wind in a spiral
• Evidence of payment of postage duty
• Wind into rings or spiral
• Wind in a series of loops
• Postal token
• Wind into a spiral