Related Clues:

• Book for keeping photos, stamps, etc
• Blank book for keeping stamps, photographs etc
• Validation for a letter — tread heavily
• Item of music released
• Brand of squash
• Keepsake holder
• LP or CD
• Passport feature
• Record-breaking compound (black)
• Email doesn't require one
• ___ of approval
• Wedding keepsake
• 'Revolver' or 'Tapestry,' e.g
• One may be passed around at a reunion
• Postage buy