Stamps: two 5 Sen UPU Koban stamps, ultramarine
- Yokohama Small Single Circle with 6 point asterisk: 29 May 1888 in black
- Yokohama foreign mail Bota (Amano #334)
- New York transit (backside)
- Rudolfstadt receiver July 4, 1988 (backside)
The small single circles were used from 1882 to 1891 in the five main post offices Yokohama, Kobe, Nagasaki, Tokio and Hakodate. They further were used in Japanese overseas postoffices: Shanghai, Chefoo and Genzan. They can be found in combination with killers and used by themselves alone. The diameter varies between 19 to 20 mm and they were used both in black and brown.
YOKOHAMA
| 7y1: Cover from Yokohama via New York to Rudolfstadt in
Germany
Stamps: two 5 Sen UPU Koban stamps, ultramarine
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| 7y2: Cover from Sapporo, Ishikari via Yokohama and New
York to Erfurt, Germany
Stamp: 10 Sen old Koban, issued 1877, blue
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| 7y3: Foreign Mail Postcard 3 Sen green, 1879 issue (FC5).
From Yokohama to Berlin, Germany
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| 7y4: Cover from Tokyo via Yokohama and San Francisco to
Cressona, forwarded to Lebanon, PA.
Stamps: UPU 5 Sen Koban strip of three plus USA 2c, tied by killer with Cressona circular date stamp.
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| 7y5: Cover from Tokyo via Yokohama and San Francisco to
Philadelphia
Stamp: 5 Sen UPU Koban, ultramarine
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7y6: 10 Sen new Koban (1888 issue), brown orange
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| 7y7: Foreign Mail Postcard FC4.
From Yokohama to Cambridge, USA
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