the black servant stereotype (in case you're wondering why there's a mannequin at the table: it's Cynthia, a major 1930s celebrity, fixture of the trendy dinner parties and gossip columns of the day; read more about her at the source link below)
the black servant stereotype seems to be very much alive
and of course there's also a black male servant stereotype
Turkish news anchor appears in blackface in the coverage of President Obama’s trip to Turkey
(source, more on blackface here)
macabre and racist valentine card with lynching theme
African Americans aren't the only victims of stereotyping
Mexicans it seems are sombrero wearing, violent, fat, moustachioed goofs (re: silly laugh) fond of conspicuous wealth (aka golden tooth)
1882, Strong anti-Chinese sentiment in California leads to the federal Chinese Exclusion Act, which suspends immigration from the East. The political cartoon above, titled "The Only One Barred Out," mocks the legislation.
More collections of racist images here and here.