Trekschuit The Duchess Countess would have been similar.

Trekschuit means 'tug boat' in Dutch but the true meaning is 'tugged boat' and is an old style of sail and horse drawn boat.

This was specific to The Netherlands and where it was used for hundreds of years as a means of passenger traffic between cities and tow canals.

It gives an idea of what The Duchess Countess packet boat would probably looked like.