Related Clues:

• 1/16 pound
• Precious metal unit
• Smallish weight measurement
• Prevention amount?
• Slightest bit
• Inscription on some ingots
• Shot-glass quantity
• Fluid measure
• Sixteenth of a pound
• Bit of prevention?
• Measure of prevention or strength?
• 1/16 of a pound
• One-eighth of a cup
• Unit of prevention
• "An ___ of prevention ..."