used  GENSAN: 1891 c.d.s. on Koban 2s. rose (blunt corner) and 5s. blue, both perf.13 and cancelled by fine strikes of the small "CENZAN" c.d.s. Rare as it is believed that only two covers and nine stamps are recorded. Photo
Twenty Millimeter c.d.s.
used GENSAN: 1891 c.d.s. on Koban 2s. rose (blunt corner) and 5s. blue, both perf.13 and cancelled by fine strikes of the small "CENZAN" c.d.s. Rare as it is believed that only two covers and nine stamps are recorded. Photo

Details
used GENSAN: 1891 c.d.s. on Koban 2s. rose (blunt corner) and 5s. blue, both perf.13 and cancelled by fine strikes of the small "CENZAN" c.d.s. Rare as it is believed that only two covers and nine stamps are recorded. Photo