Some logos have changed remarkably little from their late 19th-early 20th century designs. "If it ain't broke, why fix it?"

 

There are only slight changes to the "K" and "g"s in the Kellogg's logo.



 

The font on the current Ford logo is just slightly simplified from the 1912 version.



 
And finally for an old one that isn't cursive, here is the Du Pont logo.