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 SGC 3.5 1954 Topps Willie Mays #90 worth?

A SGC 3.5 1954 Topps Willie Mays #90 is worth approximately $376, the price-guide estimate for this grade. Card values fluctuate with the market.

What's the difference between a Grade 9 and a Gem Mint 10 Willie Mays?

For the 1954 Topps Willie Mays #90, a Grade 9 is worth about $140,300 while a Gem Mint 10 is about $168,360 — the grade gap is roughly $28,060.

How does Slabline value the Willie Mays card?

Slabline starts from the price guides for the card and grade. When it holds dated recorded sales of that exact card and grade — from CardHedge market data and the auction houses it ingests — the headline becomes the median of the most recent ones and the grade ladder rescales to match. Each row on the page names which of those it is.

How much is a raw (ungraded) 1954 Topps Willie Mays #90 worth?

A raw (ungraded) 1954 Topps Willie Mays #90 is worth about $376, 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 1954 Topps Willie Mays #90 worth?

A PSA 7 1954 Topps Willie Mays #90 is worth about $3,982, 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 8 1954 Topps Willie Mays #90 worth?

A PSA 8 1954 Topps Willie Mays #90 is worth about $12,000, 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 9 1954 Topps Willie Mays #90 worth?

A PSA 9 1954 Topps Willie Mays #90 is worth about $140,300, 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 9.5 1954 Topps Willie Mays #90 worth?

A PSA 9.5 1954 Topps Willie Mays #90 is worth about $154,330, 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 10 1954 Topps Willie Mays #90 worth?

A PSA 10 1954 Topps Willie Mays #90 is worth about $168,360, based on recent comparable sales. Values move with the market — track it free in Slabline to see the current number.

Slabline^™All graded cards →

1954 Topps Willie Mays #90

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 SGC 3.5 is worth — price-guide estimate, with every recorded sale we hold.

Photo from an eBay listing · Shop this card on eBay →

Estimated value · SGC 3.5

$376

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Price-guide estimate. The guide tracked 188 sales of this card across grades in the past year; any dated sale Slabline holds at this grade is listed under Recorded sales below.

3recorded sales

Representative photo · another grade or parallel of this card

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1954 Topps checklist→Baseball market index-0.4% 1W Willie Mays index+0.7% 1W

Recorded sales · all grades

Highest Baseball sales →

Auction houses (3)

ⓘ Where these sales come from

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. More eBay, Goldin and auction sales come from The Card API.

Prices realized at REA, SCP Auctions and Huggins & Scott, read from their public archives. Each lot carries its own grade.

All venues · 3 sales · 2023–2025

3 recorded sales · too few for a trend

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

Sep 20, 2025 · REA · SGC 3.5$707
2024Nov 20, 2024 · Huggins & Scott · SGC 3.5$360
2023Oct 20, 2023 · REA · SGC 3.5$300

Value by grade

How much the 1954 Topps Willie Mays #90 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	$376	price guide
Grade 7	$3,982	price guide
Grade 8	$12,000	price guide
Grade 9	$140,300	price guide
Grade 9.5	$154,330	price guide
Gem Mint 10	$168,360	price guide

Price guide data: SportsCardsPro

Loading every grader…

Tracked history · SGC 3.5

Current value

$376

Sales, past year (all grades)

188

Price checked today · last recorded sale 1 year ago at REA (SGC 3.5)

If you had to sell today

Liquidity

Market value

$376

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Quick-sale recovery

≈ $225

60% recovered

A dealer typically pays about 60% 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.

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Frequently asked

How much is a SGC 3.5 1954 Topps Willie Mays #90 worth?: A SGC 3.5 1954 Topps Willie Mays #90 is worth approximately $376, the price-guide estimate for this grade. Card values fluctuate with the market.
What's the difference between a Grade 9 and a Gem Mint 10 Willie Mays?: For the 1954 Topps Willie Mays #90, a Grade 9 is worth about $140,300 while a Gem Mint 10 is about $168,360 — the grade gap is roughly $28,060.
How does Slabline value the Willie Mays card?: Slabline starts from the price guides for the card and grade. When it holds dated recorded sales of that exact card and grade — from CardHedge market data and the auction houses it ingests — the headline becomes the median of the most recent ones and the grade ladder rescales to match. Each row on the page names which of those it is.
How much is a raw (ungraded) 1954 Topps Willie Mays #90 worth?: A raw (ungraded) 1954 Topps Willie Mays #90 is worth about $376, 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 1954 Topps Willie Mays #90 worth?: A PSA 7 1954 Topps Willie Mays #90 is worth about $3,982, 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 8 1954 Topps Willie Mays #90 worth?: A PSA 8 1954 Topps Willie Mays #90 is worth about $12,000, 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 9 1954 Topps Willie Mays #90 worth?: A PSA 9 1954 Topps Willie Mays #90 is worth about $140,300, 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 9.5 1954 Topps Willie Mays #90 worth?: A PSA 9.5 1954 Topps Willie Mays #90 is worth about $154,330, 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 10 1954 Topps Willie Mays #90 worth?: A PSA 10 1954 Topps Willie Mays #90 is worth about $168,360, 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 1954 Topps Willie Mays #90?: A quick sale to a dealer typically recovers about 60% of market value — roughly $225 on this card's $376 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.

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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.