Complex sentence: Gradually the purely utilitarian function of the dresser was supplemented with other functions, such as a means of displaying the best crockery in a farmhouse and the dresser could also be found in dining rooms were served as sideboard and a place to store and display dinner ware.
Split into simpler sentences: Gradually the purely utilitarian function of the dresser was supplemented with other functions, such as a means of displaying the best crockery in a farmhouse. Once it became a means of display the dresser could also be found in dining rooms were it served as sideboard and a place to store and display dinner ware.