Lou Brock Base #320 · O Pee Chee (1973) | PopHunter

←Back to Baseball dashboard

Front

Lou Brock

Name: Lou Brock
Brand: Baseball
SKU: cmqeocfvt2fkjz814i5w1c86b

Base

O Pee Chee · #320 · 1973

eBaySearch Sold comps

Estimated Market Value · Grade 8

Estimate

Collector to unlockUpgrade

Where this card's market sits right now — modeled from its real sales and the movement of comparable markets.

PSA 10 $

—

PSA 10 Pop

—

Gem Rate

—

30D Change

—

Market data as of Jul 4, 2026

Opportunity

52.3

Collector

Collector to unlockUpgrade

Investor

Investor to unlockUpgrade

Speculation

Investor to unlockUpgrade

See pricing to unlock Collector, Investor & Speculation scores

Market

PSA10 / PSA9

—

Active Listings

—

PSA10 Mkt Cap

—

PSA 10 Price

—

30D PSA10

—

90D PSA10

—

Raw Price

30D Raw

-0.7%

90D Raw

-3.5%

Prices by Grade & Grader

Population Reports

PSA Population

0 total

PSA 10

PSA 9

PSA 8

PSA 7

PSA 6

PSA 5

PSA 4

PSA 3

PSA 10 Price

PSA 9 Price

PSA 10 Population

Total Population

Opportunity Score

Active Listings

Recent Sales

Date	Grade	Price	Platform	Title
May 8, 2026	Ungraded	$7	ebay	1973 O-Pee-Chee Set-Break #320 Lou Brock VG-VGEX GMCARDS #320
Apr 12, 2026	Ungraded	$11	ebay	1973 O-Pee-Chee Lou Brock St. Louis Cardinals #320 #320
Feb 25, 2026	Ungraded	$10	ebay	1973 O-Pee-Chee Lou Brock #320 HOF 0m8e #320
Feb 14, 2026	SGC 4.5	$25	ebay	1973 O-PEE-CHEE #320 LOU BROCK CARDINALS HOF SGC 4.5
Nov 6, 2025	Ungraded	$4	ebay	1973 O-Pee-Chee #320 Lou Brock Cardinals HOF Printed In Canada
Oct 22, 2025	Ungraded	$4	ebay	1973 O-Pee-Chee #320 Lou Brock Cardinals HOF Beauty EX-MT+
Oct 16, 2025	PSA 8	$80	ebay	1973 O-Pee-Chee #320 Lou Brock St. Louis Cardinals PSA 8 Graded Baseball Card
Oct 11, 2025	Ungraded	$6	ebay	1973 O-Pee-Chee Set-Break #320 Lou Brock VG-VGEX GMCARDS #320
Sep 21, 2025	PSA 8	$75	ebay	PSA 8 1973 OPC O-pee-chee Topps #320 Lou Brock St. Louis Cardinals HOF ONLY READ #320
Sep 18, 2025	PSA 8	$70	ebay	1973 O-PEE-CHEE #320 LOU BROCK CARDINALS HOF PSA 8
Sep 14, 2025	Ungraded	$6	ebay	1973(OPC) O PEE CHEE SET BREAK # 320 LOU BROCK (HOF) PRINTED IN CANADA EX-EXMT!
Sep 9, 2025	Ungraded	$4	ebay	1973 LOU BROCK OPC O-Pee-Chee MLB Baseball Card #320 HOF EX-MT STL Cardinals #320
Sep 4, 2025	Ungraded	$6	ebay	1973 O-Pee-Chee Set-Break #320 Lou Brock EX-EXMINT GMCARDS #320
Sep 3, 2025	Ungraded	$4	ebay	1973 O-Pee-Chee Lou Brock St. Louis Cardinals #320 R27 #320
Aug 20, 2025	Ungraded	$13	ebay	1973 O-Pee-Chee Set-Break #320 Lou Brock EX-EXMINT GMCARDS #320
Aug 19, 2025	Ungraded	$10	ebay	1973 O-Pee-Chee Set-Break #320 Lou Brock VG-VGEX GMCARDS #320
Jul 25, 2025	PSA 8	$100	ebay	1973 O-PEE-CHEE #320 Lou Brock PSA 8 NMMT #320
Jun 16, 2025	Ungraded	$5	ebay	1973 O-Pee-Chee 320 Lou Brock #320
Mar 12, 2025	Ungraded	$5	ebay	1973 O-Pee-Chee Set-Break #320 Lou Brock EX-EXMINT GMCARDS #320
Jan 18, 2025	Ungraded	$8	ebay	1973 O-Pee-Chee Lou Brock St. Louis Cardinals #320 R28 #320
Jan 2, 2025	Ungraded	$1	ebay	1973 O-Pee-Chee #320 Lou Brock GD - VG CARDINALS HOF
Jun 29, 2024	Ungraded	$2	ebay	1973 O-Pee-Chee Lou Brock St. Louis Cardinals #320 R118 #320
Jun 11, 2024	Ungraded	$3	ebay	1973 O-Pee-Chee Lou Brock St. Louis Cardinals #320 R30 #320
May 24, 2024	Ungraded	$2	ebay	1973 O-Pee-Chee Lou Brock St. Louis Cardinals #320 R29 #320
Apr 16, 2024	Ungraded	$3	ebay	1973 LOU BROCK OPC O-Pee-Chee MLB Baseball Card #320 HOF STL Cardinals EX #320
Mar 10, 2024	PSA 7	$26	ebay	1973 O-PEE-CHEE #320 Lou Brock PSA 7 NM St. Louis Cardinals #320
Aug 9, 2023	Ungraded	$1	ebay	1973 O-Pee-Chee LOU BROCK #320 VINTAGE CARDINALS CARD #320
Aug 5, 2023	Ungraded	$1	ebay	Lou Brock 1973 O-Pee-Chee Baseball Card - #320 - Hall of Famer #320
Jul 10, 2023	PSA 4	$5	ebay	1973 Lou Brock PSA 4 (MC) O-PEE-CHEE Baseball #320 NICE HOF Invest NOW #320
Jun 12, 2023	Ungraded	$7	ebay	1973 73 OPC O-Pee-Chee Baseball #320 Lou Brock St.Louis Cardinals HOF SHARP
Jun 11, 2023	Ungraded	$7	ebay	1973 OPC O-Pee-Chee BASEBALL #320 LOU BROCK EXMINT HOF ST LOUIS CARDINALS (SB1) #320
Mar 25, 2023	Ungraded	$2	ebay	1973 LOU BROCK O-PEE-CHEE OPC ST LOUIS CARDINALS #320
Mar 25, 2023	PSA 7	$23	ebay	1973 O-Pee-Chee Baseball #320 Lou Brock, PSA 7 NM, HOF #320
Dec 15, 2022	Ungraded	$4	ebay	1973 O-Pee-Chee #320 Lou Brock EX X2466957 #320
Nov 30, 2022	Ungraded	$5	ebay	1973 O-Pee-Chee Set-Break #320 Lou Brock VG-VGEX GMCARDS #320
Nov 8, 2022	Ungraded	$6	ebay	1973 O-Pee-Chee baseball #320 Lou Brock Cardinals excellent to NMint. Beauty #320
Sep 29, 2022	Ungraded	$7	ebay	1973 O-Pee-Chee Set-Break #320 Lou Brock EX-EXMINT GMCARDS #320
Sep 27, 2022	Ungraded	$8	ebay	1973 O-PEE-CHEE #320 LOU BROCK CARDINALS #320
May 29, 2021	PSA 6	$19	ebay	1973 O-Pee-Chee #320 Lou Brock PSA 6 01008844

Similar Opportunities

Same Player

Lou Brock #200 #200

1972 · O Pee Chee

PopHunter surfaces potentially undervalued scarcity and relative value signals. This is not financial or investment advice. Always do your own research before purchasing graded cards.