Name : The SL Fuyu-no-Shitsugen Train 2021
Pictorial elements : The SL Fuyu-no-Shitsugen Train
Post Office : Kushiro Central Post Office [Not used now]
First day of use : Jan. 23, 2021 (Reiwa 3)
Last day of use : Feb. 28, 2021 (Reiwa 3)
Postmark date : Jan. 25, 2021 (Reiwa 3)
Prefectures : Hokkaido
Address : 13-2-1 Saiwaicho, Kushiro-shi, Hokkaido 085-8799



Reference: 小型印 - 日本郵便 - Japan Post

Name : The SL Fuyu-no-Shitsugen Train 2021
Pictorial elements : The SL Fuyu-no-Shitsugen Train
Post Office : Toro Post Office [Not used now]
First day of use : Jan. 25, 2021 (Reiwa 3)
Last day of use : Feb. 26, 2021 (Reiwa 3)
Postmark date : Jan. 25, 2021 (Reiwa 3)
Prefectures : Hokkaido
Address : 51-87 Tourogenya Kita 7 Sen, Shibecha-cho, Kawakami-gun, Hokkaido 088-2299



Reference: 小型印 - 日本郵便 - Japan Post

Name : The SL Fuyu-no-Shitsugen Train 2021
Pictorial elements : The SL Fuyu-no-Shitsugen Train
Post Office : Shibecha Post Office [Not used now]
First day of use : Jan. 25, 2021 (Reiwa 3)
Last day of use : Feb. 26, 2021 (Reiwa 3)
Postmark date : Jan. 25, 2021 (Reiwa 3)
Prefectures : Hokkaido
Address : 1-3-6 Asahi, Shibecha-cho, Kawakami-gun, Hokkaido 088-2399



Reference: 小型印 - 日本郵便 - Japan Post

Name : Cat Day in Japan, 2021
Post Office : Sannohe Post Office [Not used now]
First day of use : Feb. 22, 2021 (Reiwa 3)
Last day of use : Feb. 22, 2021 (Reiwa 3)
Postmark date : Feb. 22, 2021 (Reiwa 3)
Prefectures : Aomori
Address : 15-2 Yokamachi, Sannohe-machi, Sannohe-gun, Aomori-ken 039-0199



Reference: 小型印 - 日本郵便 - Japan Post

Name : Tetsudo Hobby Train 7th Anniversary
Post Office : Uwajima Post Office [Not used now]
First day of use : Apr. 1, 2021 (Reiwa 3)
Last day of use : Sep. 30, 2021 (Reiwa 3)
Author : Takako TAKAYAMA
Postmark date : Apr. 1, 2021 (Reiwa 3)
Prefectures : Ehime



Reference: 小型印 - 日本郵便 - Japan Post

Name : Fukei-in 90th
Post Office : Asakusa Post Office [Not used now]
First day of use : Mar. 23, 2021 (Reiwa 3)
Last day of use : Mar. 25, 2021 (Reiwa 3)
Postmark date : Mar. 23, 2021 (Reiwa 3)
Prefectures : Tokyo
Address : 1-1-1 Nishi-asakusa, Taito-ku, Tokyo-to 111-8799



Reference: 小型印 - 日本郵便 - Japan Post

Name : Commemoration of Japan Heritage certification for the story about "Kirin-lion Dance" (Kirinshishimai)
Pictorial elements : "Kirin-lion Dance" (Kirinshishimai), Type C12 Steam Locomotive
Post Office : Wakasa Post Office [Not used now]
First day of use : May. 20, 2021 (Reiwa 3)
Last day of use : Mar. 31, 2022 (Reiwa 4)
Postmark date : May. 26, 2021 (Reiwa 3)
Prefectures : Tottori
Address : 340-1 Wakasa, Wakasa-cho, Yazu-gun, Tottori-ken 680-0799 [Link to OpenStreetMap]



Reference: 小型印 - 日本郵便 - Japan Post

Name : 110th anniv. of the founding of Toei Transportation
Pictorial elements : Toden Type 6000 EC
Post Office : Toshima Post Office [Not used now]
First day of use : Aug. 16, 2021 (Reiwa 3)
Last day of use : Aug. 22, 2021 (Reiwa 3)
Postmark date : Aug. 21, 2021 (Reiwa 3)
Prefectures : Tokyo
Address : 3-18-1 Higashiikebukuro, Toshima-ku, Tokyo-to 170-8799



Reference: 小型印 - 日本郵便 - Japan Post

Name : Tokyo 2020 Paralympic Torch Relay, Tokyo
Post Office : Toshima Post Office [Not used now]
First day of use : Aug. 20, 2021 (Reiwa 3)
Last day of use : Aug. 24, 2021 (Reiwa 3)
Postmark date : Aug. 21, 2021 (Reiwa 3)
Prefectures : Tokyo
Address : 3-18-1 Higashiikebukuro, Toshima-ku, Tokyo-to 170-8799



Reference: 「東京2020聖火リレー」に伴う小型記念通信日付印の押印サービスの実施 - 日本郵便 - Japan Post

Name : Stamp Exhibition Supporting COVID-19 Relief
Post Office : Nagasaki Nakazono Post Office [Not used now]
First day of use : Oct. 7, 2021 (Reiwa 3)
Last day of use : Oct. 22, 2021 (Reiwa 3)
Author : Sho FUKUCHI
Postmark date : Oct. 14, 2021 (Reiwa 3)
Prefectures : Nagasaki
Address : 10-4 Nakazonocho, Nagasaki-shi, Nagasaki-ken 852-8155



Reference: 小型印 - 日本郵便 - Japan Post