Looks like a badly made reproduction of an original Elmer Chickering cabinet known from the Library of Congress collection. The writing was fountain pen on the original cabinet which on subsequent copies would "appear" to be part of the image.
http://www.loc.gov/pictures/collecti...em/2008678935/
Pretty easy to "make" these by taking a reproduction image of the player photo and pasting them on an original cabinet mount.
Just as an FYI very rarely are you going to find a Boston National League (for example) players cabinet card like this on a non-Boston photographers mount. The exceptions would be from a city of an opposing team (the Boston team was in New York so they got their photos there) or sometimes a player being photographed at a studio near where they lived but the cities on those two Allen mounts make no sense and are 100% fakes. Usually the city the photographer was in makes sense with the given subject matter.