The charming postcard and first day cover (envelope) from Japan that I had bought online, arrived in the mail today.
The wealth of information for each was generated by my AI helper Claude, just from examining the images. Very impressive.
The Stamp
The orange 2-yen stamp in the upper left is a postwar definitive stamp reading “日本郵便” (Nihon Yūbin/Japan Post), showing a temple gate design. Two-yen stamps in this style date to the late 1940s, a period of rapid currency inflation in occupied Japan, which pushed postal rates up quickly from their prewar sen-denominated values.
The Postmark (the real story here)
The circular cancellation in the lower left is a special commemorative postmark, not an everyday one.
It reads:
市制六十周年 (60th anniversary of city status)
復興五年記念 (5th anniversary of reconstruction)
岩瀬 (Iwase) — the post office/place name
24. 8. 1 — Shōwa 24, meaning August 1, 1949
A small ship and mountain range are worked into the design, along with text referencing 越中富山 (Ecchū Toyama) and 反魂丹 (Hangontan)
This tells us the postcard was mailed from Iwase, a district of Toyama City on the Sea of Japan coast. Iwase developed as a port town in the early Edo period, and by the late Edo period, wealthy shipping merchant families there grew rich handling kitamae-bune (northern-bound ship) trade in rice, kelp, and local medicines — which is exactly why a ship appears in the cancellation, and why “Hangontan” (a famous Toyama folk medicine, historically peddled nationwide by traveling Toyama medicine merchants) is referenced. The mountains in the design are almost certainly the Tateyama range, Toyama’s iconic backdrop. The “60th anniversary of city status / 5th anniversary of reconstruction” combination fits 1949, four years after WWII bombing damage to Toyama City, whose 60th anniversary of municipal incorporation also fell around that time.
Kyoto-art
The Poem and Artwork
The calligraphy is a classical waka poem attributed to Ōtomo no Yakamochi (大伴家持), one of the great poets of the Man’yōshū (Japan’s oldest poetry anthology). It’s poem 4249 from Book 19: 石瀬野に秋萩しのぎ馬並めて初鷹猟だにせずや別れむ — roughly, “At Iwase-no, brushing past the autumn bush-clover, shall we line up our horses and part without even a first hawking-hunt?”
Art Tags
This is the key connection: “Iwase-no” (石瀬野) in the poem is the very place the postcard was mailed from — Yakamochi served as governor of Ecchū province (roughly modern Toyama) from 746–751 CE and wrote many poems about the local landscape, including this one about a hunting trip near Iwase. The postcard’s illustrator paired this 8th-century poem with a Shōwa-era illustration of pines, sea, and mountains, and captioned the scene 古志の松原 (“the pine grove of Koshi,” Koshi being the old name for the Hokuriku region).
Putting It Together (Summary)
This appears to be a locally produced commemorative postcard, likely sold or distributed around the 1949 Iwase anniversary events, using a beloved local Man’yōshū poem tied to place-name pride — pairing Yakamochi’s ancient verse about “Iwase-no” with modern-day Iwase, Toyama, and postmarking it with a special celebratory cancel on the actual day.
The Stamps
Four stamps commemorating Nikkō National Park, issued September 1, 1962 (Shōwa 37) as part of Japan’s “Second National Park Series” — a long-running program (1962–1974, 52 stamps total) that succeeded the prewar “First National Park Series.” The stamps were issued in denominations of 5 yen and 10 yen, with 9 million printed.
Going by the imagery:
Purple/violet 10-yen — a lake with a mountain behind it, almost certainly Lake Chūzenji (中禅寺湖) with Mt. Nantai (男体山) rising behind it — the park’s signature view.
Olive/gold 10-yen — a wooded gorge or stream, likely one of the park’s famous waterfalls or river valleys (Kirifuri or Ryūzu falls area).
Blue 5-yen — a wetland with a mountain reflected in still water — this looks like Senjōgahara (戦場ヶ原), the marshland plateau below Mt. Nantai.
Brown/red 5-yen — steam or mist rising off a hillside — likely one of the volcanic hot-spring areas near Yumoto Onsen (湯元温泉), within the park.
The Postmarks
There are two different special first-day pictorial cancels (特印), both dated 37. 9. 1 (September 1, 1962), each from a different post office — a common FDC practice in Japan where multiple offices tied to a stamp’s subject each get their own commemorative design:
Left: 日光 NIKKO — shows a bridge (likely the sacred red Shinkyō Bridge at the entrance to Nikkō’s shrines), mountain peaks, and a jet plane, suggesting the Nikkō post office cancel.
Right: 群馬 片品 (Gunma, Katashina) — shows a marsh/lake outline and flowering plants, almost certainly referencing Oze (尾瀬), the famous highland marsh known for its skunk cabbage (mizubasho) blooms. Katashina Village in Gunma Prefecture is the main gateway to Oze, which is part of Nikkō National Park even though it’s a fair distance from Nikkō itself — the park spans four prefectures (Tochigi, Gunma, Fukushima, Niigata).
So this cover was specially prepared by a collector or dealer to catch two different first-day cancellations from two different prefectures, both tied to different corners of the same national park — a nice touch, since it visually ties together the mountain/lake scenery around Nikkō itself with the separate Oze wetland area the park also protects.
The Cachet
The painted mountain-and-lake scene across the bottom is a cachet — decorative artwork added to the envelope specifically for the first-day-of-issue release, standard practice for FDCs worldwide. It appears to depict Mt. Nantai over Lake Chūzenji again, reinforcing the stamp series’ theme, with the English title block up top confirming the series name and date for English-speaking collectors — suggesting this was likely produced with export/foreign collectors in mind, which was fairly common for Japanese FDCs of this era.