21. The overprints could be used to illustrate the politics of the 1911 Revolution. 22. The accompanying image shows genuine overprints , and forged overprints from an internet auction. 23. The accompanying image shows genuine overprints, and forged overprints from an internet auction. 24. The Nationalists also produced overprints limiting the use of some stamps to particular provinces. 25. Overprints of this set were produced for use in Xinjiang, Yunnan and Manchuria.26. Owing to different denomination and overprints , there are at least 104 variants catalogued. 27. However, relicts are found of retrograde overprint . 28. Overprints are known from about 75 different states.29. Many of these were overprinted with a control overprint with the year of issue. 30. Beginning in 1915, 10s notes included a red " Half Sovereign " overprint .
