There's literally thousands of Mets cards out there, so use the search feature or click through to go to eBay to search for what you're looking for.  Otherwise browse the selection below:
1968 TOPPS #177 JERRY KOOSMAN RC   NOLAN RYAN RC METS PSA 9    20835397

1968 TOPPS #177 JERRY KOOSMAN RC NOLAN RYAN RC METS PSA 9 20835397

PayPal $90,000.00 28d 12h 57m
1971 TOPPS #513 NOLAN RYAN METS PSA 9    21473504

1971 TOPPS #513 NOLAN RYAN METS PSA 9 21473504

PayPal $36,369.00 28d 12h 57m
2016 Topps Michael Conforto Silver Metal ROOKIE #'d 16 PSA10 RC New York Mets NY

2016 Topps Michael Conforto Silver Metal ROOKIE #'d 16 PSA10 RC New York Mets NY

PayPal $26,900.00 16d 10h 9m
2016 Topps Michael Conforto Industry Summit ROOKIE #'d 1 1 RC New York Mets NY

2016 Topps Michael Conforto Industry Summit ROOKIE #'d 1 1 RC New York Mets NY

PayPal $19,900.00 16d 10h 51m
2015 2016 2017 METS TOPPS DYNASTY COLLECTION AUTO RELIC LOGOMAN TAG  1 1  5  10

2015 2016 2017 METS TOPPS DYNASTY COLLECTION AUTO RELIC LOGOMAN TAG 1 1 5 10

PayPal $9,850.00 19d 13h 10m
1967 Topps #581 Tom Seaver New York Mets RC Rookie HOF PSA 9 Mint Centered

1967 Topps #581 Tom Seaver New York Mets RC Rookie HOF PSA 9 Mint Centered

PayPal $9,200.00 26d 13h 18m
1969 New York Mets Team Issue NOLAN RYAN PSA 10 GEM MINT; Pop 1

1969 New York Mets Team Issue NOLAN RYAN PSA 10 GEM MINT; Pop 1

PayPal $8,999.00 3d 15h 41m
1975 Topps 620 Gary Carter Rookie Card RC PSA 10 GEM MT New York Mets HOF

1975 Topps 620 Gary Carter Rookie Card RC PSA 10 GEM MT New York Mets HOF

PayPal $8,999.00 28d 15h 8m
1973 Topps Pin-Ups Tom Seaver PSA 9 New York Mets HOF

1973 Topps Pin-Ups Tom Seaver PSA 9 New York Mets HOF

PayPal $9,000.00 27d 15h 4m
1970 TOPPS #712 NOLAN RYAN METS PSA 9    30474101

1970 TOPPS #712 NOLAN RYAN METS PSA 9 30474101

PayPal $8,623.00 28d 12h 57m
1970 TRANSOGRAM METS SIDE PANEL #1 ALL TIME SET (PSA 10.33 RATING) W  NOLAN RYAN

1970 TRANSOGRAM METS SIDE PANEL #1 ALL TIME SET (PSA 10.33 RATING) W NOLAN RYAN

PayPal $7,500.00
$9,750.00
5d 20h 3m
1972 Topps #445 Tom Seaver HOF New York Mets PSA 10 Gem Mint Pop Report  2 1048

1972 Topps #445 Tom Seaver HOF New York Mets PSA 10 Gem Mint Pop Report 2 1048

PayPal $7,199.00 1d 8h 21m
1968 Topps NOLAN RYAN #177 ROOKIE  SGC 92 8.5  Nm Mint+ RC Baseball Card NY Mets

1968 Topps NOLAN RYAN #177 ROOKIE SGC 92 8.5 Nm Mint+ RC Baseball Card NY Mets

PayPal $6,999.99 3d 11h 28m
1968 Topps NOLAN RYAN Rookie New York Mets SGC 8.5

1968 Topps NOLAN RYAN Rookie New York Mets SGC 8.5

CashOnPickup $6,600.00 10h 43m
1969 Topps Nolan Ryan #533 New York Mets  SGC 8

1969 Topps Nolan Ryan #533 New York Mets SGC 8

PayPal $6,429.99 1d 20h 8m
1970 Topps #712 Nolan Ryan NY Mets PSA 9 MINT VERY SHARP,  High End 9,  Only 3 10s

1970 Topps #712 Nolan Ryan NY Mets PSA 9 MINT VERY SHARP, High End 9, Only 3 10s

PayPal $6,000.00 21d 14h 55m
Nolan Ryan & Jerry Koosman NY Mets 1968 Topps Rookie Stars Baseball Card - PSA

Nolan Ryan & Jerry Koosman NY Mets 1968 Topps Rookie Stars Baseball Card - PSA

PayPal $5,849.99 2d 17h 33m
Nolan Ryan NOLY GRAIL of Autos! Earliest Signed on "Card" Mets World Series 1 1

Nolan Ryan NOLY GRAIL of Autos! Earliest Signed on "Card" Mets World Series 1 1

PayPal $5,500.00 2d 18h 42m
Tom Seaver pitcher   Mets #41 error card

Tom Seaver pitcher Mets #41 error card

PayPal $5,400.00 6d 13h 29m
TOM SEAVER 1967 Topps #581 PSA 8 NM-MT Mets Rookies Rookie w FREE RecordBreakr

TOM SEAVER 1967 Topps #581 PSA 8 NM-MT Mets Rookies Rookie w FREE RecordBreakr

PayPal $5,225.00 26d 5h 6m
1963 TOPPS #334 WYNN HAWKINS METS PSA 10    90331175

1963 TOPPS #334 WYNN HAWKINS METS PSA 10 90331175

PayPal $5,123.00 28d 12h 57m
2015 Bowman Chrome J.D. Davis Auto RCS  LOT OF 26 Superfractor included MET$

2015 Bowman Chrome J.D. Davis Auto RCS LOT OF 26 Superfractor included MET$

PayPal $4,500.00 5d 10h 34m
1968 TOPPS #177 JERRY KOOSMAN,  NOLAN RYAN ROOKIE CARD,  METS PSA 9 OC,  BASEBALL

1968 TOPPS #177 JERRY KOOSMAN, NOLAN RYAN ROOKIE CARD, METS PSA 9 OC, BASEBALL

PayPal $4,250.00 24d 9h 35m
1972 Topps Candy Lids Test Issue Tom Seaver PSA 6 New York Mets HOF

1972 Topps Candy Lids Test Issue Tom Seaver PSA 6 New York Mets HOF

PayPal $4,250.00 27d 15h 2m
1968 Topps # 177 ROOKIE Nolan Ryan & Jerry Koosman Mets PSA 9 (OC)

1968 Topps # 177 ROOKIE Nolan Ryan & Jerry Koosman Mets PSA 9 (OC)

PayPal $3,995.00 21d 18h 6m
1971 TOPPS #513 NOLAN RYAN PSA 8.5 NM-MT+ NEW YORK METS HOF BASEBALL HE HIGH END

1971 TOPPS #513 NOLAN RYAN PSA 8.5 NM-MT+ NEW YORK METS HOF BASEBALL HE HIGH END

PayPal $3,499.00 22d 19h 29m
2015 Bowman Chrome Draft RED REFRACTOR Desmond Lindsay RC AUTO 3 5 Mets

2015 Bowman Chrome Draft RED REFRACTOR Desmond Lindsay RC AUTO 3 5 Mets

PayPal $3,499.99 16d 16h 29m
2015 Bowman Chrome J.D. Davis RED 5 5 Auto RC Autograph METS

2015 Bowman Chrome J.D. Davis RED 5 5 Auto RC Autograph METS

PayPal $3,500.00 10d 2h 36m
1963 TOPPS #566 CLIFF COOK METS PSA 10    14326077

1963 TOPPS #566 CLIFF COOK METS PSA 10 14326077

PayPal $3,330.00 28d 12h 57m
1967 Topps #581 Tom Seaver   Bill Denehy - Mets Rookies PSA 8 - NM MT

1967 Topps #581 Tom Seaver Bill Denehy - Mets Rookies PSA 8 - NM MT

PayPal $3,220.00 27d 6h 2m

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