Related Clues:

• Where black is white, for short?
• Not pos.
• Kind of no.
• Item in a photog's file
• A photog saves it
• Master of photog.
• Like some blood types: Abbr.
• Kind of charge: Abbr.
• Photog's item
• Darkroom master: Abbr.
• Photo envelope enclosure, for short
• Pos. opp.
• Blood-typing abbr.
• -: Abbr.
• Battery term.