Related Clues:

• Five-centime piece of old
• Five-centime piece
• Very small bit
• ___'wester (waterproof hat)
• Dust unit
• One-twentieth of an old franc
• French monetary unit
• It's certainly no big thing
• Paltry sum
• Dusty bit
• Five centimes, once
• Nearly worthless amount
• Floating speck, perhaps
• Former franc fraction
• Molecule