SUPERMAN #231

Graded at 4.0 (VG) on 2026-10-15, from new photos taken out of the sleeve: front, back, interior page and spine. Many colour-breaking stress ticks along the black spine. Chipping at the lower spine. Creased top-right and blunted lower-right corners. Scuffing on the black areas. Toned, soiled back and cream pages.

Superman #231 arrived in November 1970, part of the run immediately preceding Denny O'Neil's landmark de-powering arc that began with issue #233. The book reflects the transitional late-1960s/early-1970s Superman formula, with art handled in the classic Curt Swan house style that defined the character for two decades. It carries no first appearance, origin, or death of consequence, and its plot is a standard Silver-to-Bronze Age science-fiction adventure typical of the era's Superman output.

The market data reflects a book with low overall demand and thin sales activity across most grades, consistent with a common, non-key issue from a high-print-run title. Pricing climbs modestly through the mid grades before jumping sharply near the top of the census, a pattern typical of Bronze Age filler issues where raw and low-grade copies see negligible collector interest but pristine, sparingly-available slabs command a real premium simply due to scarcity at the top of the population report. With no 9.6 or 9.8 sales on record, the top end of the market remains thin and speculative.

This is a book for Superman run-builders and Bronze Age completists rather than character-first-appearance investors. Raw copies in low and mid grade trade cheaply and steadily as reading/collection filler, while CGC 9.8 examples–should one surface–would likely draw competitive bidding from registry-set collectors chasing an unrepresented top grade rather than from broader market demand. Long-term value growth here is tied more to general Bronze Age Superman collecting trends than to any intrinsic key status of the issue itself.