1966 Topps Batman Riddler Back #6 Bookworm Batman

Centering estimate: left border appears slightly wider than right (approx 55/45 L/R), top border appears narrower than bottom (approx 60/40 T/B) — centering is not a major downgrade factor here. The COMC watermark obscures the card surface significantly, making surface assessment difficult. Corner detail is largely unresolvable at this image quality and distance, though no dramatically rounded or creased corners are immediately obvious. Edges appear intact with no gross miscut visible. Gloss level cannot be confidently assessed. Given the uncertainty introduced by the watermark obstruction and image resolution, the range is widened; a clean EX (5) is the point estimate pending back inspection and corner/surface examination under better imaging.