[Ron Wood]

James,
Bill indicated most of the parts that should be strawed (trigger, takedown lever, safety). In addition, the magazine release and ejector should be strawed, and the little "tab" that blocks the sear when the safety is engaged should be "in the white", i.e. no blue or straw just raw metal. Also the little pin, the tip of which shows on top of the left toggle knob, should be in the white (this is the most common evidence of re-blue as most refinishers do not bother to disassemble the toggle train to refinish).