The interesting thing from a Freemasonic point of view is the constant recurrence of sets of Squares and Compasses. You'll see some at that link. There are coins as well, and they have S+Qs on the reverse. That would be handy for Mark!
There is a YouTube video showing how to play this strategic card game:
Freeman of the City of Prince George, British Columbia 4th Degree Order of Skinner & Probyn's 18th Degree A&H Art. Company of Mass, USA Orator of the Planispheres &c &c &c GM, Order of Acrimonious Virgin