How to Ascertain the Date (or Time Period) of Prewar Japanese Picture Postcards

Overview If you work with Japanese picture postcards as historical source material, you have probably noticed that most surviving cards lack postmarks and other temporal indicators. This post provides a guide to estimating the age of these revealing artifacts, based on printing conventions that conformed to international and Japanese postal regulations.  This post also provides … Continue reading How to Ascertain the Date (or Time Period) of Prewar Japanese Picture Postcards