I have about 40 Langtons. They were based on Langon bases but these were of differing sizes and none would fit the SoG blue base. I really wanted them to fit as the rigging and sails are being damaged by constant handling. So I sent off for 50 laser cut clear acryllic bases the same size as the clear SoG bases and voila, they fit. However for my own use I like them flat with the gaming surface, hence what you see in the pics. The arc cards fit underneath and I'm in he process of making and printing them on clear acetate.