DETECTIVE COMICS #365

Cover shows moderate wear with a vertical crease/stress line running through the upper left checkerboard border and green brick area, along with soft/rounded corners visible at top and bottom left. There is noticeable spine wear with slight color break and the cover has some overall handling softness. Edges show minor fraying at the top and bottom, and the book is currently housed in a plastic sleeve which obscures some fine detail. Interior and back cover were not assessed.

Detective Comics #365 (July 1967) arrived during DC's "New Look" Batman era, a few years after Carmine Infantino redesigned the character's visual identity beginning with issue #327. The issue delivers a standard Batman and Robin lead story alongside an Elongated Man backup feature, both typical of the anthology-style back matter Detective Comics ran through the mid-1960s. It carries no first appearance, death, or origin of lasting significance, placing it among the broad run of enjoyable but non-key Silver Age Batman issues rather than among the acknowledged keys of the title.

Demand for the issue tracks the general Silver Age Batman collecting base rather than any speculative key-issue premium. The FMV curve is smooth and gradual through the mid and high grades, with values climbing modestly from the teens and tens of dollars in low-mid grade up through the low hundreds by 9.2-9.4, before spiking sharply at the top of the census. That final jump to the 9.8 tier, populated by only two known copies against 293 universal census entries, is a scarcity effect rather than a content-driven one: pristine Silver Age survivors of any competently drawn, well-distributed DC title command outsized premiums once census populations thin out near the top.

This is a book bought primarily by Silver Age Batman run-builders and Infantino-era cover collectors rather than key-issue investors. Raw copies in low and mid grade trade as affordable reading and filler copies for long-box collections, with pricing driven by general condition and eye appeal rather than any first-appearance premium. At the CGC 9.8 level, the calculus changes entirely: with essentially no depth of high-grade population, a single sale can set the market, and a graded 9.8 example functions more as a census-rarity trophy than a conventional key-issue investment.