Ha… well, there are only two. (Not including ones made in other countries for American retailers, like V. L. & D, etc)
Here is the 10g and 12g pinfire shotshells made by C. D. Leet. The three 10g ones are variations. The first one has a different cap inside and much smaller rim, the next two are obviously different heights. The fourth is the seemingly immensely rare 12g version. There are very very few known. This one appears to have the 12 double stamped (which means there is still a non-double-stamped one to find!)
Additionally, UMC made an experimental 16g pinfire shotshell in 1887, but none are known to exist, and they were never sold.