What is the Slabline Score?

The Slabline Score is a credit-style 0–1000 protection score for a graded trading-card collection, blended from five weighted factors: Insurance (35%), Concentration (25%), Storage (20%), Liquidity (10%), and Provenance (10%). Higher is better; bands run A (≥880) to F (<400).

How does Slabline value my graded cards?

Each card is valued from recent comparable sales for the exact graded card (by certification number and grade), aggregated across eBay, Heritage, Goldin, and PWCC. More comps yield a tighter, higher-confidence value.

Does Slabline sell insurance?

No. Slabline is software that produces broker-ready insurance schedules and risk reports. It is not an insurer, broker, or appraiser and does not provide insurance, financial, or legal advice.

Which cards and categories does Slabline support?

Graded slabs from PSA, BGS, SGC, and CGC across baseball, basketball, football, soccer, Formula 1 / racing, hockey, Pokémon, and Magic.

How much does Slabline cost?

There is a free Ledger tier for up to 25 cards. Collector is $99/year (or $9.99/month) and removes the card limit for an unlimited collection. Insured is $149/year (or $14.99/month) and adds broker-ready insurance schedules and a weekly intelligence brief. A Vaulted tier adds connected Hobby Smart Case hardware.

What is the Hobby Smart Case?

A connected travel case (Travel 40, 75, and Pro) with per-slot temperature, humidity, light, and tamper monitoring, plus GPS location and a chain-of-custody log — turning storage risk into live, sensor-verified data. Launching Q2 2027.

How much is a PSA 5 1974 O-Pee-Chee Dave Winfield #456 worth?

A PSA 5 1974 O-Pee-Chee Dave Winfield #456 is worth approximately $42, based on recent comparable sales. Card values fluctuate with the market.

How does Slabline value the Dave Winfield card?

Slabline values each graded card from recent comparable sales of the exact card and grade, aggregated across eBay, Heritage, Goldin, and Fanatics Collect. More sales yield a tighter, higher-confidence estimate.

How much is a raw (ungraded) 1974 O-Pee-Chee Dave Winfield #456 worth?

A raw (ungraded) 1974 O-Pee-Chee Dave Winfield #456 is worth about $205, based on recent comparable sales. Values move with the market — track it free in Slabline to see the current number.

How much is a PSA 7 1974 O-Pee-Chee Dave Winfield #456 worth?

A PSA 7 1974 O-Pee-Chee Dave Winfield #456 is worth about $49, based on recent comparable sales. Values move with the market — track it free in Slabline to see the current number.

Slabline^™All graded cards →

1974 O-Pee-Chee Dave Winfield #456

Q: How does Slabline value my graded cards?

Each card is valued from recent comparable sales for the exact graded card (by certification number and grade), aggregated across eBay, Heritage, Goldin, and PWCC. More comps yield a tighter, higher-confidence value.

Q: Does Slabline sell insurance?

No. Slabline is software that produces broker-ready insurance schedules and risk reports. It is not an insurer, broker, or appraiser and does not provide insurance, financial, or legal advice.

Q: Which cards and categories does Slabline support?

Graded slabs from PSA, BGS, SGC, and CGC across baseball, basketball, football, soccer, Formula 1 / racing, hockey, Pokémon, and Magic.

Q: How much does Slabline cost?

There is a free Ledger tier for up to 25 cards. Collector is $99/year (or $9.99/month) and removes the card limit for an unlimited collection. Insured is $149/year (or $14.99/month) and adds broker-ready insurance schedules and a weekly intelligence brief. A Vaulted tier adds connected Hobby Smart Case hardware.

Q: What is the Hobby Smart Case?

A connected travel case (Travel 40, 75, and Pro) with per-slot temperature, humidity, light, and tamper monitoring, plus GPS location and a chain-of-custody log — turning storage risk into live, sensor-verified data. Launching Q2 2027.

What a PSA 5 is worth — from real comparable sales.

1974 O-Pee-Chee checklist→Baseball market index-2.0% 1W

Estimated value · PSA 5

$42

See live listings on eBay →

Median of the last 5 recorded PSA 5 sales · Aug 2026 – Sep 2026

Tracked history · PSA 5

Current value

$42

Sales, past year (all grades)

Price checked today · last recorded sale 10 days ago (PSA 5) · 20 sales in the last 90 days

Own this card? Add it to see its per-cert comps.

Your exact cert unlocks cert-specific recent sales, comp confidence, and full population across PSA · BGS · SGC · CGC — plus a value tracked daily. Free, no account.

Add to my collection →

That's one card. Most collectors are holding 20–30× that across a shoebox they've never added up.

What's my whole collection worth? →

Scan or type a cert · free for 25 cards · no account needed

✦ Own this card?

Track it free — worth about $42 today

My copy is

Value re-priced dailySell / hold / regrade callInsurance-ready recordNo account needed

Add to my collection →

Trading this card? Check the trade → · Ripping slab packs? See the real EV → · both sides priced per cert, liquidity-adjusted, free.

🔔 Want to know when this card moves?

We'll email you when the value changes. No account needed.

One email when it moves ~5%+. Unsubscribe anytime.

Value by grade

How much the 1974 O-Pee-Chee Dave Winfield #456 is worth at each grade.

How to read this page: an estimate is Slabline's figure for a grade, built from the source named beside it. An observed price is the latest price a grader's copy of this card fetched, one cell per grader and grade in the grid below. A recorded sale is a dated transaction with its venue. The headline above is the estimate for this slab's own grade.

Grade	Value	Built from
Raw / Ungraded	$205	guide, rescaled to sales
Grade 7	$49	guide, rescaled to sales

Loading every grader…

Recorded sales · all grades

Highest Baseball sales →

eBay, Fanatics Collect, Alt, MySlabs, Goldin and Heritage records arrive through CardHedge's licensed feed; REA, SCP and Huggins & Scott are read from each house's published prices realized.

Sales seen on eBay, Fanatics Collect, Goldin, Heritage, Alt and MySlabs, via CardHedge. "Marketplace · house pending" is a real CardHedge sale whose house is not matched yet.

All venues · 199 sales · 2023–2026

0.0% first → latest

Hover for any sale · click to find it in the list

Sep 12, 2026 · Marketplace · house pending · PSA 5$31
Sep 6, 2026 · Marketplace · house pending · PSA 5$45
Sep 1, 2026 · Marketplace · house pending · PSA 5$50
Aug 31, 2026 · Marketplace · house pending · PSA 5$41
Aug 28, 2026 · Marketplace · house pending · PSA 5$42
Aug 12, 2026 · Marketplace · house pending · PSA 5$48
Aug 8, 2026 · Marketplace · house pending · PSA 5$45
Aug 7, 2026 · Marketplace · house pending · PSA 5$50
Aug 4, 2026 · Marketplace · house pending · PSA 5$41
Aug 3, 2026 · Marketplace · house pending · PSA 5$43

Ask Slabline

answers only from this card's data

Anything about Dave Winfield?

Own this card? List it on ebay straight from your Slabline collection — prefilled title, photo and price, one tap.→

If you had to sell today

Liquidity

Market value

$42

→

Quick-sale recovery

≈ $21

50% recovered

A dealer typically pays about 50% of market for a fast, guaranteed sale — the rest is the liquidity gap. An auction or private sale can recover more but takes time and fees. It’s why your Slabline Score weighs liquidity — and why insuring at market matters: a fire-sale recovers far less than the number you’re covered for.

Estimated from dealer buy-vs-sell spreads; actual offers vary by condition and demand.

✦ Have the raw card? Pre-Grade it from a photoFree AI

Predict the grade it would likely receive — then see its real gem rate and whether it's worth grading, before you pay to submit.

→

Centering analyzer →

Own this card? Track its value automatically.

Add it to your free Slabline collection — live valuations, a 0–1000 protection score, and a broker-ready insurance schedule.

Start my collection →

See a full baseball collection scored →

Or get the iOS app

See live listings on eBay →

Slabline may earn a commission from eBay purchases.

Frequently asked

How much is a PSA 5 1974 O-Pee-Chee Dave Winfield #456 worth?: A PSA 5 1974 O-Pee-Chee Dave Winfield #456 is worth approximately $42, based on recent comparable sales. Card values fluctuate with the market.
How does Slabline value the Dave Winfield card?: Slabline values each graded card from recent comparable sales of the exact card and grade, aggregated across eBay, Heritage, Goldin, and Fanatics Collect. More sales yield a tighter, higher-confidence estimate.
How much is a raw (ungraded) 1974 O-Pee-Chee Dave Winfield #456 worth?: A raw (ungraded) 1974 O-Pee-Chee Dave Winfield #456 is worth about $205, based on recent comparable sales. Values move with the market — track it free in Slabline to see the current number.
How much is a PSA 7 1974 O-Pee-Chee Dave Winfield #456 worth?: A PSA 7 1974 O-Pee-Chee Dave Winfield #456 is worth about $49, based on recent comparable sales. Values move with the market — track it free in Slabline to see the current number.
How much would I actually get selling the 1974 O-Pee-Chee Dave Winfield #456?: A quick sale to a dealer typically recovers about 50% of market value — roughly $21 on this card's $42 value. An auction or private sale can recover more but takes longer and charges fees. The gap between market value and quick-sale recovery is the card's liquidity risk.

Related cards

Guides

Own this card? Track its value automatically.

Add it to your free Slabline collection — live valuations, a 0–1000 protection score, and a broker-ready insurance schedule.

Start my collection →

See a full baseball collection scored →

Values are informational estimates built from recent comparable sales — not a certified appraisal, insurance, or financial advice. Card values fluctuate; figures are a snapshot and may differ from a realized sale.