20,310 live listings tracked8,062 card classes5,038 confirmed salesupdated 4 h ago
1966 Topps Batman Riddler Back #21 United Underworld

1966 Topps Batman Riddler Back #21 United Underworld — Raw

1966 Topps Batman Riddler Back #21 United Underworld — Raw
Buy it now on eBay $19.99cheapest of 3 live listings on eBay
3live listings
0confirmed sales

This card in every grade

What the same card is asking in the other holders this index tracks.
HolderListedCheapestDearest
Raw3$19.99$59.99
PSA 6 (MK)

Asking range

Half of the 2 Buy It Now listings tracked are asking between $22 and $27, median $25.
$19$36$53Aug 5 2026 - median $40, middle half $30 to $50, 2 listingsAug 6 2026 - median $40, middle half $30 to $50, 2 listingsAug 7 2026 - median $40, middle half $30 to $50, 2 listingsAug 9 2026 - median $40, middle half $30 to $50, 2 listingsAug 10 2026 - median $40, middle half $30 to $50, 2 listingsAug 11 2026 - median $40, middle half $30 to $50, 2 listingsAug 16 2026 - median $40, middle half $30 to $50, 2 listingsAug 17 2026 - median $40, middle half $30 to $50, 2 listingsAug 18 2026 - median $40, middle half $30 to $50, 2 listingsAug 20 2026 - median $40, middle half $30 to $50, 2 listingsAug 22 2026 - median $40, middle half $30 to $50, 2 listingsAug 24 2026 - median $40, middle half $30 to $50, 2 listingsAug 26 2026 - median $40, middle half $30 to $50, 2 listingsAug 27 2026 - median $40, middle half $30 to $50, 2 listingsAug 29 2026 - median $40, middle half $30 to $50, 2 listingsAug 30 2026 - median $40, middle half $30 to $50, 2 listingsSep 1 2026 - median $40, middle half $30 to $50, 2 listingsSep 2 2026 - median $40, middle half $30 to $50, 2 listingsSep 3 2026 - median $40, middle half $30 to $50, 2 listingsSep 6 2026 - median $40, middle half $30 to $50, 2 listingsSep 7 2026 - median $40, middle half $30 to $50, 2 listingsSep 9 2026 - median $40, middle half $30 to $50, 2 listingsSep 12 2026 - median $40, middle half $30 to $50, 2 listingsSep 13 2026 - median $40, middle half $30 to $50, 2 listingsSep 14 2026 - median $40, middle half $30 to $50, 2 listingsSep 17 2026 - median $40, middle half $30 to $50, 2 listingsSep 18 2026 - median $40, middle half $30 to $50, 2 listingsSep 20 2026 - median $30, middle half $25 to $45, 3 listingsSep 21 2026 - median $30, middle half $25 to $45, 3 listingsSep 22 2026 - median $30, middle half $25 to $45, 3 listingsSep 23 2026 - median $25, middle half $22 to $27, 2 listingsAug 5Sep 23
Shaded band is the middle half of live Buy It Now asking prices, daily intervals; the line is the median. Auctions are excluded - a climbing bid is not an asking price. The scale follows the asking prices, so a sale well outside them is pinned to the edge rather than flattening the band.middle halfconfirmed salebest offer, at its cap

Confirmed sales

No confirmed sales recorded yet. The index logs a sale only after a listing verifiably ends — auction results at the final bid. As tracked auctions close, comps appear here automatically.
3 listed · 3 sellers30-day window

Live listings

Asking prices and current bids — not values. Est. grade is our opinion from the seller’s photo, on the PSA scale — see notes below.
PriceTypeEst. grade (ours)Est. ROI after gradingListing (opens eBay)
1966 Topps Batman Riddler Backs #21 United Underworld Nether$19.99Buy It Now3 (2–4)1966 Topps Batman Riddler Backs #21 United Underworld Netherlands Holland on eBay
1966 TOPPS BATMAN #21 UNITED UNDERWORLD PENGUIN RIDDLER CATW$29.99Buy It Now4 (3–5)1966 TOPPS BATMAN #21 UNITED UNDERWORLD PENGUIN RIDDLER CATWOMAN JOKER EX on eBay
1966 Topps Batman Riddler Decoder Card # 21 United Underworl$59.99Buy It Now4 (3–5)1966 Topps Batman Riddler Decoder Card # 21 United Underworld (EX) on eBay

Index grading notes

Estimated grades are this site’s opinion, derived from the seller’s photo and expressed on the PSA scale. Not affiliated with or endorsed by PSA; not a guarantee of any grading outcome.
1966 Topps Batman Riddler Backs #21 United Underworld Nether
Estimated grade: 3 (2–4) · MEDIUM confidence · asking $19.99

Centering estimate: left border appears notably wider than right (~70/30 L/R), top border slightly wider than bottom (~55/45 T/B), so horizontal centering is a meaningful concern. Corner wear is visible even at this resolution — at least two corners (lower-left and upper-left) show clear rounding, consistent with a VG to VG-EX range. Surface shows visible scuffing/scratching particularly across the upper-left quadrant and center of the image, with apparent gloss loss. Edges appear rough but that is typical for 1966 Topps Batman vintage stock. The combination of rounded corners, surface wear/scratching, and off-centering points to a PSA 3 (VG) as the most likely outcome, though a strong PSA 4 is possible if the back is clean and no creases are present — the back cannot be assessed from this photo.

1966 TOPPS BATMAN #21 UNITED UNDERWORLD PENGUIN RIDDLER CATW
Estimated grade: 4 (3–5) · MEDIUM confidence · asking $29.99

Centering estimate from photo: left border appears moderately wider than right (roughly 60/40 L/R), top border slightly wider than bottom (roughly 55/45 T/B) — centering is passable but not tight. Corners show visible rounding on at least two corners visible from this angle, consistent with light-to-moderate handling wear. The black borders show some edge wear and the surface exhibits gloss loss in spots, consistent with age; no obvious hard creases are visible in the image though the angled shot limits crease detection. Card appears to fall in the VG-EX to EX range (4–5), but corner rounding and gloss reduction pull it toward the lower end; the single photo from this distance and angle prevents confident separation between a 3 and a 5, so the range is widened accordingly.

1966 Topps Batman Riddler Decoder Card # 21 United Underworl
Estimated grade: 4 (3–5) · LOW confidence · asking $59.99

Card is photographed sideways and held in album corner mounts, severely limiting assessment of corners and surface detail. Centering estimate: left/right borders appear approximately 80/20 to 85/15 and top/bottom (as oriented on card) appear similarly off-center, suggesting moderate to significant centering issues — rough estimate only due to rotation and blur. Corners cannot be assessed with precision but no extreme rounding or obvious creasing is apparent at this resolution; the seller's 'EX' claim is plausible but unverifiable. Surface gloss and any print defects are indeterminate from this photo. The wide range (3–5) reflects genuine uncertainty from a single angled, blurry, rotated shot in an album; a proper scan or front-facing photo would be needed to tighten this estimate.