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20,627 live listings tracked10,121 card classes11,355 confirmed salesupdated 19 min ago
1966 OPC Batman Riddler Back #31 Bat on a Buoy

1966 OPC Batman Riddler Back #31 Bat on a Buoy — Raw

1966 OPC Batman Riddler Back #31 Bat on a Buoy — Raw
Buy it now on eBay $3.50 ›cheapest of 4 live listings on eBay
4live listings
0confirmed sales

This card in every grade

What the same card is asking in the other holders this index tracks.
HolderListedCheapestDearest
Raw4$3.50$5.50
TAG ?———

Asking range

Half of the 4 Buy It Now listings tracked are asking between $3.50 and $5.12, median $4.25.
$3.31$4.31$5.32Jul 30 2026 - median $4.25, middle half $3.50 to $5.12, 4 listingsAug 6 2026 - median $4.25, middle half $3.50 to $5.12, 4 listingsAug 13 2026 - median $4.25, middle half $3.50 to $5.12, 4 listingsAug 20 2026 - median $4.25, middle half $3.50 to $5.12, 4 listingsAug 27 2026 - median $4.25, middle half $3.50 to $5.12, 4 listingsSep 3 2026 - median $4.25, middle half $3.50 to $5.12, 4 listingsSep 10 2026 - median $4.25, middle half $3.50 to $5.12, 4 listingsSep 17 2026 - median $4.25, middle half $3.50 to $5.12, 4 listingsSep 24 2026 - median $4.25, middle half $3.50 to $5.12, 4 listingsOct 1 2026 - median $4.25, middle half $3.50 to $5.12, 4 listingsOct 8 2026 - median $4.25, middle half $3.50 to $5.12, 4 listingsOct 15 2026 - median $4.25, middle half $3.50 to $5.12, 4 listingsOct 22 2026 - median $4.25, middle half $3.50 to $5.12, 4 listingsOct 29 2026 - median $4.25, middle half $3.50 to $5.12, 4 listingsNov 5 2026 - median $4.25, middle half $3.50 to $5.12, 4 listingsJul 30Nov 5
Shaded band is the middle half of live Buy It Now asking prices, weekly 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.
4 listed · 1 seller All from one seller.30-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)
Batman Riddler Back 1966 O-Pee-Chee: Card #31 v5 Bat on a Bu$3.50Buy It Nowpending—Batman Riddler Back 1966 O-Pee-Chee: Card #31 v5 Bat on a Buoy on eBay
Batman Riddler Back 1966 O-Pee-Chee: Card #31 v4 Bat on a Bu$3.50Buy It Nowpending—Batman Riddler Back 1966 O-Pee-Chee: Card #31 v4 Bat on a Buoy on eBay
Batman Riddler Back 1966 O-Pee-Chee: Card #31 v2 Bat on a Bu$5.00Buy It Now4 (3–5)—Batman Riddler Back 1966 O-Pee-Chee: Card #31 v2 Bat on a Buoy on eBay
Batman Riddler Back 1966 O-Pee-Chee: Card #31 v1 Bat on a Bu$5.50Buy It Now4 (3–5)—Batman Riddler Back 1966 O-Pee-Chee: Card #31 v1 Bat on a Buoy 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.
Batman Riddler Back 1966 O-Pee-Chee: Card #31 v2 Bat on a Bu
Estimated grade: 4 (3–5) · MEDIUM confidence · asking $5.00

Centering estimate: left border appears notably wider than right (roughly 65/35 L/R), top border slightly wider than bottom (approximately 55/45 T/B), so horizontal centering is the primary concern. Corners show visible rounding on at least two corners visible in the scan, consistent with moderate handling wear. The surface shows some color fading and print grain typical of OPC issues, with modest gloss loss across the face. No obvious hard creases are visible from this scan, but the image resolution limits confidence in ruling out light surface creases; the worn corners and off-centering point to a VG-EX (4) estimate, with EX (5) possible if corners are better than they appear and no creases exist on the reverse.

Batman Riddler Back 1966 O-Pee-Chee: Card #31 v1 Bat on a Bu
Estimated grade: 4 (3–5) · LOW confidence · asking $5.50

Centering estimate: left border appears noticeably wider than right (roughly 70/30 L/R), top and bottom borders appear more balanced at approximately 55/45 T/B - centering is off but not catastrophically so. Corners are difficult to assess precisely at this resolution but appear to show some rounding or light wear on at least two corners, consistent with a VG-EX to EX range. Surface shows some gloss loss and the image presents with the typical OPC vintage color saturation fading; no obvious hard creases are visible but the photo resolution prevents a confident ruling-out of light surface creases. The small card format and fair image quality create meaningful uncertainty - a full grade swing in either direction is plausible pending back inspection and corner close-ups.