In the lists and the treatises
| Year | List or treatise | Rank |
|---|---|---|
| 1797, with reissues in 1805 and 1830 | Kaihō Kenjaku (懐宝剣尺) and Kokon Kaji Bikō (古今鍛冶備考), by Yamada Asaemon | 業物 (wazamono), the fourth of four grades, for the first Hizen Masahiro, that is, Kawachi Daijō Masahiro |
Documented works
- Katana signed 肥前国佐賀住正広 (Hizen no kuni Saga jū Masahiro), earlier than the title according to the museum, with a 66.4 cm blade and 1.8 cm of curvature, donated by Robert Burawoy, in the Tokyo National Museum.
- Katana blade by Masahiro dated 1653, with a 68.1 cm cutting edge and 1.7 cm of curvature, in the Metropolitan Museum of Art in New York.
- Katana signed 肥前国佐賀住正広 (Hizen no kuni Saga jū Masahiro) and dated the second month of 1639 (Kan'ei 16), of a little over 2 shaku 3 sun 4 bu (about 71 cm), an NBTHK kantei piece in 2025.
- Katana signed 肥前国河内大掾藤原正広 (Hizen no kuni Kawachi Daijō Fujiwara Masahiro), of 2 shaku 2 sun 9 bu (about 69 cm), tempered in suguha, an NBTHK kantei piece in 2019.
Other blades with his name
- A tachi signed 肥前国藤原正広作 (Hizen no kuni Fujiwara Masahiro saku), a cultural property of Kanagawa prefecture since 14 January 1958, at the shrine 江島神社 (Enoshima-jinja), according to Japanese Wikipedia. It is not recorded which Masahiro it is by.
- The sword of Takechi Hanpeita, according to the tradition recorded by Japanese Wikipedia.
No blade of his with a State designation has been found.