Japanese Stamps Digital Museum

桜切手(和紙仮名無し) << 1872年(明治5年) ~ 1874年(明治7年) >> みほん 1-1-3

Hand carved (Etched) stamps 3 (Cherry Blossom) << Japanese paper non-Syllabics >> - Specimen -
Issued on 1872(Meiji5) - 1874(Meiji7)

Cherry Blossom, Japanese paper with Non Syllabics - Specimen -
Issued on 1872(Meiji 5) - 1874(Meiji7)
In 1872 (Meiji 5), response to the rising demand for postal services, the government commissioned landowners and celebrities across the country to open third-class post office. In July of the same year, a new design stamp was issued to replace the dragon stamp. Cherry blossoms were designed in the four corners with one-color printing, and ten, twenty, and thirty sen were issued for the use of overseas communication, and Roman letters (Sen) were added to the design.

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The above is only true for specimen stamps.
For more information and official printed stamps, see this.
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