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 Q4 2026.

What's the difference between a Grade 9 and a Gem Mint 10 Wayne Gretzky [Error 1302 Career Assists & Not 13102]?

For the 1990 O-Pee-Chee Wayne Gretzky [Error 1302 Career Assists & Not 13102] #120, a Grade 9 is worth about $22 while a Gem Mint 10 is about $75 — the grade gap is roughly $53.

How does Slabline value the Wayne Gretzky [Error 1302 Career Assists & Not 13102] card?

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

Slabline^™All graded cards →

1990 O-Pee-Chee Wayne Gretzky [Error 1302 Career Assists & Not 13102] #120

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 Q4 2026.

What a PSA 10 is worth — from real comparable sales.

1990 O-Pee-Chee checklist→Hockey market index+0.3% 1W

Estimated value · PSA 10

$75

Based on 47 recent sales of this card at PSA 10, aggregated across marketplaces — live listings below.

Tracked history · PSA 10

Current value

$75

Sales, past year (all grades)

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

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 1990 O-Pee-Chee Wayne Gretzky [Error 1302 Career Assists & Not 13102] #120 is worth at each grade.

Grade	Value
Raw / Ungraded	$3.67
Grade 7	$8.04
Grade 8	$13
Grade 9	$22
Grade 9.5	$30
Gem Mint 10	$75

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

$75

→

Quick-sale recovery

≈ $19

25% recovered

A dealer typically pays about 25% 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 a raw one? See if it's worth grading

Opens the ROI calculator pre-filled with this card's Grade 9 and Gem Mint 10 values.

→

✦ 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.

See a full 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 10 1990 O-Pee-Chee Wayne Gretzky [Error 1302 Career Assists & Not 13102] #120 worth?: A PSA 10 1990 O-Pee-Chee Wayne Gretzky [Error 1302 Career Assists & Not 13102] #120 is worth approximately $75, based on recent comparable sales. Card values fluctuate with the market.
What's the difference between a Grade 9 and a Gem Mint 10 Wayne Gretzky [Error 1302 Career Assists & Not 13102]?: For the 1990 O-Pee-Chee Wayne Gretzky [Error 1302 Career Assists & Not 13102] #120, a Grade 9 is worth about $22 while a Gem Mint 10 is about $75 — the grade gap is roughly $53.
How does Slabline value the Wayne Gretzky [Error 1302 Career Assists & Not 13102] card?: Slabline values each graded card from recent comparable sales of the exact card and grade, aggregated across eBay, Heritage, Goldin, and PWCC. More sales yield a tighter, higher-confidence estimate.
How much is a raw (ungraded) 1990 O-Pee-Chee Wayne Gretzky [Error 1302 Career Assists & Not 13102] #120 worth?: A raw (ungraded) 1990 O-Pee-Chee Wayne Gretzky [Error 1302 Career Assists & Not 13102] #120 is worth about $3.67, 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 1990 O-Pee-Chee Wayne Gretzky [Error 1302 Career Assists & Not 13102] #120 worth?: A PSA 7 1990 O-Pee-Chee Wayne Gretzky [Error 1302 Career Assists & Not 13102] #120 is worth about $8.04, 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 1990 O-Pee-Chee Wayne Gretzky [Error 1302 Career Assists & Not 13102] #120 worth?: A PSA 8 1990 O-Pee-Chee Wayne Gretzky [Error 1302 Career Assists & Not 13102] #120 is worth about $13, 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 1990 O-Pee-Chee Wayne Gretzky [Error 1302 Career Assists & Not 13102] #120 worth?: A PSA 9 1990 O-Pee-Chee Wayne Gretzky [Error 1302 Career Assists & Not 13102] #120 is worth about $22, 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 1990 O-Pee-Chee Wayne Gretzky [Error 1302 Career Assists & Not 13102] #120 worth?: A PSA 9.5 1990 O-Pee-Chee Wayne Gretzky [Error 1302 Career Assists & Not 13102] #120 is worth about $30, 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 1990 O-Pee-Chee Wayne Gretzky [Error 1302 Career Assists & Not 13102] #120 worth?: A PSA 10 1990 O-Pee-Chee Wayne Gretzky [Error 1302 Career Assists & Not 13102] #120 is worth about $75, 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 1990 O-Pee-Chee Wayne Gretzky [Error 1302 Career Assists & Not 13102] #120?: A quick sale to a dealer typically recovers about 25% of market value — roughly $19 on this card's $75 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.

See a full 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.