The lettering style was "Penman" a loopy Copperplate with deeply shaded capitals and almost monoline minuscules. I custom mixed a dark plum color to coordinate with the wedding colors, and added a simple gold flower swirl to add depth.
These escort cards had the table no. written inside of the fold, but it is also standard to write the table number below each name. As an alternative to indicate seating arrangements, you can use a seating chart like this one I created for a "Autumn themed" wedding.
Close up of upper right corner: