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Ken, FYI you might ponder that your image (or reflected written material, or whatever) is reversed left for right but NOT up for down. In effect it's as if the object were somehow transparent and viewed from behind. If now a second mirror is in the line of sight, the image is reversed twice, bringing it back to its original or "erect" form. The rule is, if the number of reflections is odd, reversed image; if the number is even, erect image. This rule finds use in single-lens reflex cameras having a "penta-prism" finder: The real image formed by the lens is reflected once onto the ground glass, therefore it is reversed there. In the finder it is reflected three more times, thus ending before the magnifying eyepiece as erect. Cheers, Joe -- J. R. Bruman (818) 789-3694 3527 Cody Road Sherman Oaks, CA 91403-5013