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 7 1952 Berk Ross Mickey Mantle #NNO worth?

A PSA 7 1952 Berk Ross Mickey Mantle #NNO is worth approximately $17,500, the median of its 3 most recent recorded sales at this grade. Card values fluctuate with the market.

What's the difference between a Grade 9 and a Gem Mint 10 Mickey Mantle?

For the 1952 Berk Ross Mickey Mantle #NNO, a Grade 9 is worth about $128,333 while a Gem Mint 10 is about $377,451 — the grade gap is roughly $249,118.

How does Slabline value the Mickey Mantle 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.

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1952 Berk Ross Mickey Mantle #NNO

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 7 is worth — from its recorded sales.

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1952 Berk Ross checklist→Baseball market index-0.5% 1W Mickey Mantle index+0.6% 1W

Estimated value · PSA 7

$17,500

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Median of the last 3 recorded PSA 7 sales · eBay · Feb 2026 – Jul 2026

Tracked history · PSA 7

Price checked today · last recorded sale 2 months ago at eBay (PSA 7) · 2 sales in the last 90 days

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Value by grade

How much the 1952 Berk Ross Mickey Mantle #NNO 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	$5,164est.	estimate
Grade 7	$17,500est.	3 recorded sales
Grade 8	$66,967est.	estimate
Grade 9	$128,333est.	estimate
Grade 9.5	$248,039est.	estimate
Gem Mint 10	$377,451est.	estimate

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 · 4 sales · 2026

▲ 31.6% first → latest

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

Jul 25, 2026 · eBay · PSA 7$17,500
Jul 19, 2026 · eBay · PSA 7$17,500
Feb 24, 2026 · eBay · PSA 7$12,250
Jan 27, 2026 · eBay · PSA 7$13,300

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Frequently asked

How much is a PSA 7 1952 Berk Ross Mickey Mantle #NNO worth?: A PSA 7 1952 Berk Ross Mickey Mantle #NNO is worth approximately $17,500, the median of its 3 most recent recorded sales at this grade. Card values fluctuate with the market.
What's the difference between a Grade 9 and a Gem Mint 10 Mickey Mantle?: For the 1952 Berk Ross Mickey Mantle #NNO, a Grade 9 is worth about $128,333 while a Gem Mint 10 is about $377,451 — the grade gap is roughly $249,118.
How does Slabline value the Mickey Mantle 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.

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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.