Related Clues:

• Word with food or rubber
• Part of a Rorschach test
• Printing goof
• -
• Prepare to mail
• It's stuck in the corner
• Bit of philately
• Impression
• Black mark
• Imprint
• Philatelist's find
• Dry with absorbent paper
• Rorschach mark
• Philatelist's prize
• Passport endorsement