WORLD’S FINEST COMICS #166

Cover shows good gloss and bright colors with no major creases or stains visible. There is a small stress mark/crease near the top left edge and slight wear at the top and bottom edges of the spine area; corners appear reasonably sharp with only minor blunting. The book is currently housed in a protective sleeve, which limits full assessment of edge and surface wear. Interior pages and back cover were not visible and were not assessed.

World's Finest Comics #166, published by DC Comics with a May 1967 cover date, continues the long-running Superman/Batman team-up anthology that anchored DC's Silver Age line. The issue features "The Superman-Batman Split," a story built around a dramatic rift between the two heroes, illustrated in the clean, dynamic house style associated with Curt Swan during this era. While not tied to a landmark first appearance or origin, the issue is representative of the character-driven team-up formula that made World's Finest a consistent seller throughout the 1960s, pairing DC's two most recognizable properties on a single cover.

Market activity for #166 reflects its status as a well-collected but non-key mid-run Silver Age issue. Census data shows a healthy population of over 110 CGC Universal copies spread fairly evenly across the grading scale, with meaningful sales activity from grade 4.0 upward, indicating steady but unspectacular collector interest. Values climb gradually through the mid grades before accelerating in near-mint territory, a pattern typical of team-up books that draw demand primarily from Superman and Batman completists rather than speculative key-issue buyers. The absence of any certified 9.8 sales, despite three copies existing on census, points to a thin but real premium market at the top of the grade scale that has yet to be tested by a public transaction.

This is a book most likely to attract Superman and Batman series collectors building complete World's Finest runs, along with Silver Age generalists rounding out DC team-up holdings. Lower and mid-grade raw copies trade as affordable reading or filler copies, priced modestly and widely available given the size of the surviving population. High-grade certified copies, particularly anything approaching gem mint, will command outsized premiums relative to the mid-grade market due to census scarcity at the top end, making this a book where condition drives value far more than backstory.