Greatest Hits

[rats60]

T206 Wagner
Baltimore News Ruth
1952 Topps Mantle
M101-4/5 Ruth
T206 Plank
T206 Cobb/Cobb back
1933 Goudey Lajoie
1925 Exhibit Gehrig
1955 Topps Clemente
1949 Leaf Jackie Robinson

[oldjudge]

T206 Wagner
M101-4/5 Ruth
Old Judge Anson in Uniform
Just So Young
Baltimore News Ruth
1869 Peck & Snyder Cincinnati Trade Card with ad back

[mechanicalman]

I'd repeat most of what's written but add:

1914/15 CJ Cobb
1914/15 CJ Joe Jackson
1914 CJ Matty

[vargha]

Maybe add in:

1951 Bowman Mays and Mantle
1939 Play Ball Ted Williams
Zeenut Joe Dimaggio
1936 World Wide Gum Joe Dimaggio
Cracker Jack Joe Jackson

[Andrew1975]

I would add the 1888 Goodwin Champions N162 King Kelly. To me, that is the most iconic pre 1900 card.

[Sean]

In no particular order:
T206 Wagner
T206 Doyle
T206 Plank
T206 Cobb/ Cobb back
N172 Old Judge Cap Anson in uniform
T210 Old Mill Joe Jackson
Baltimore News Babe Ruth
1933 Goudey Nap Lajoie
1952 Topps Mantle
M101-4/5 Babe Ruth

or perhaps the E90-1 American Caramel Joe Jackson instead of the Old Mill Jackson.

[Mdmtx]

Adds IMO
N43 Ewing
N167 Ewing
M101 Thorpe
W600 Wagner
T3 Cobb

[BearBailey]

T3 Ty Cobb
T206 Honus Wagner
Cracker Jack Joe Jackson
1933 Nap Lajoie
1938 Goudey Head Joe Dimmagio
T205 Christy Mathewson

[Baseball Rarities]

My ten:

1869 Peck & Snyder Cincinnati CDV w/ Ann St or other 1869 reverse
1893 Just So Young
1902 W600 Wagner Street Clothes
1903 W600 Mathewson Street Clothes
1907 Detroit Seamless Steel Tubes Cobb
1908 Rose Postcard Johnson
1909 T206 Wagner
1914 Baltimore News Ruth
1916 M101-5/4 Ruth
1952 Topps Mantle

[edjs]

Originally Posted by Sean

In no particular order:
T206 Wagner
T206 Doyle
T206 Plank
T206 Cobb/ Cobb back
N172 Old Judge Cap Anson in uniform
T210 Old Mill Joe Jackson
Baltimore News Babe Ruth
1933 Goudey Nap Lajoie
1952 Topps Mantle
M101-4/5 Babe Ruth

or perhaps the E90-1 American Caramel Joe Jackson instead of the Old Mill Jackson.

+1, and I would add the D304 Cobb.