ISJP Study Groups
ISJP has a number of study groups which collect information and specimens of specific types of Japanese philatelic material. Most were started by Japanese Philately (JP) but to make it easier for members to find a particular group we have provided this list of the different groups, together with their respective coordinators and contact details. It is hoped that members will send information of new findings to the respective group coordinator.
Foreign Mail Postmark Study Groups
Pictorial Postmarks (Large Commemorative Datestamps)