Which kind of artwork did currier and ives make that was very popular with americans?

A Brush for the Lead, lithograph by Currier and Ives, 1867. and this is What the Painting was called and was very popular by the Americans :)

 Lithographic prints could be reproduced quickly and purchased inexpensively, and the firm called itself "the Grand Central Depot for Cheap and Popular Prints" and advertised its lithographs as "colored engravings for the people".[

Bob ewell

Perhaps the changes well be new machines that can get the job done faster and same time, there is enough space to keep on building.