DETECTIVE COMICS #236

Cover shows significant wear consistent with a well-read Silver Age book: multiple vertical creases running through the top logo box and lower right corner, a noticeable crease/tear at the left edge near the corner box, spine stress lines visible along the left edge, and general surface wear with some color rubbing especially at corners. There is writing/ink notation in the upper left corner and top margin. The book is encased in a protective sleeve which adds some glare but does not obscure the major defects. Interior pages and back cover were not assessed.

Detective Comics #236 arrived in October 1956, deep in the period when the Batman feature had settled into a formula of costumed-crimefighter mysteries alongside back-up material that, in these years, often included the Martian Manhunter strip introduced the previous year. The issue reflects DC's house style of the mid-1950s: tightly plotted Batman and Robin adventures drawn under the Bob Kane studio banner, with covers built around a clean, graphic hook rather than the moodier pre-Code horror aesthetic phased out after 1954. It is not associated with a recognized first appearance, origin, or death, and its interest rests on being a representative, increasingly hard-to-find issue from a foundational Batman-era run rather than on any singular landmark moment.

The CGC population for this issue is thin across the board, with only 75 total graded copies and no example certified above 8.5. Sales data shows a steep value curve concentrated at the low end, with most transacted copies falling in the 1.5 to 5.5 range and prices climbing sharply once a copy clears the 7.5 to 8.0 threshold, more than tripling between 8.0 and the top-known 8.5. That kind of curve is typical of a scarce mid-Silver-Age comic where demand is driven by series completists and Batman-run collectors rather than by first-appearance speculation, and the total absence of any 9.8 on census signals genuine difficulty in sourcing pristine paper for this specific issue.

Collecting interest in this book comes primarily from Detective Comics run-builders and Batman Silver Age specialists working through the title issue by issue, plus GA/SA crossover buyers assembling complete decades. At the low and mid grades it trades as an affordable, easily available piece of a longer run, priced in line with comparable non-key issues from the same years. At the high end, thin certified population and the lack of any top-tier graded example mean a pristine slab would likely command a substantial premium over the highest currently known grade, appealing to registry-set builders chasing census-topping copies rather than to buyers focused purely on story significance.