Excalibur #37 (May 1991) Marvel Comics - The Promethium Exchange Part 1

This is a vintage US-style comic book, Excalibur issue number 37, published by Marvel Comics with a cover date of May 1991. The cover art features a dynamic composition titled 'Dragons, Demons and Doctor Doom!', showcasing the character Shadowcat (Kitty Pryde) in her blue costume, prominently entangled with a blue, multi-eyed creature. Dr. Doom is visible in the background against a bold yellow sky. The trade dress includes a price of $1.75 US and the Comics Code Authority seal. Physically, the item is a standard 10.25 x 6.625 inch stapled periodic publication. The cover exhibits moderate wear consistent with light use: there are visible spine stress lines (color-breaking ticks), horizontal surface creases across the center, and blunted corners on the left edge. The paper quality appears slightly aged but maintains color vibrancy. This issue is notable for featuring artwork by Scott Williams and Paul Neary, and it marks the beginning of 'The Promethium Exchange' storyline crossover. It is housed in a clear protective plastic sleeve (poly-bag).