Russian post offices in China

The first offices were in Beijing, Kalgan, Tientsin, and Urga (in Mongolia), all in areas near to Russian-controlled territory.

In addition, many Russian Field Post Offices operated throughout Manchuria and civilian mail was frequently accepted there as well.

In addition, Travelling Post Offices operated in trains along the Chinese Eastern Railway.

The overprint was also applied to postal stationery envelopes, postcards, letter cards and newspaper wrappers.

Most of these types are commonly available today (less than one US$); the most problematic is the blue overprint on the 14-kopeck wove paper variety, whose existence has been questioned.