JSDA – Japan Stamp Catalogue 2022
JSDA Japan Postage Stamp Commercial Cooperative Edition Includes Japanese stamps and leaf documents up to July 7, 2021,
Ryukyu and Southern Occupation Stamps, and Manchurian Stamps.
Postage stamp name, issue date, English stamp name, sheet composition,
number of stamps issued, stamp number, face value, evaluation, etc. are posted.