ADVENTURE COMICS #356

Cover shows typical Silver Age paper toning and a subtle sheen/gloss loss consistent with age; no major tears or missing pieces are visible. Slight softness is visible at the top corners and there appears to be minor edge wear along the right border, with a faint vertical crease near the spine area. Glare from the protective sleeve obscures fine surface detail, and the book is bagged, so the back cover and interior pages were not assessed.

Adventure Comics #356 arrived during the celebrated stretch of the title devoted entirely to the Legion of Super-Heroes, the team of 30th-century teenage heroes that had taken over the anthology's lead spot in the mid-1960s. This issue falls within the run scripted by Jim Shooter, who began writing the Legion as a teenager himself and reshaped the feature with tighter plotting and a growing rogues' gallery, alongside the clean, dynamic art of the period's regular Legion art team. While the issue does not carry a recognized first appearance or origin story, it is representative of the tightly serialized Legion continuity that built the team's large and devoted fanbase through the late 1960s.

The certified population is substantial, with 88 Universal copies recorded across the grading spectrum, reflecting steady collector interest in the Legion's Silver Age adventures rather than scarcity-driven demand. Pricing is notably flat through the low-to-mid grades, with only modest increases from 5.5 through 9.0, before climbing sharply above 9.2 as true high-grade survivors thin out. The absence of any 9.8 sales, paired with just three copies at that grade on census, signals a book that becomes meaningfully harder to source cleanly at the top end despite its overall abundance.

This issue suits Legion of Super-Heroes completists and Silver Age DC readers building out the Adventure Comics run rather than key-issue speculators, since it lacks the first-appearance pedigree that drives premium demand elsewhere in the series. Raw copies in low and mid grades trade as affordable reading and run-filler material, while high-grade certified copies command a real premium owing to the thin population above 9.6. Long-term demand should continue to track broader Legion of Super-Heroes collecting activity and the enduring popularity of the Shooter-era stories rather than any standalone significance of this particular issue.