The most exciting unlisted stamps of Cambodia are the surcharges. Since they were locally handstamped for postal use with no philatelic sales, overseas collectors have had a hard time identifying and collecting them.
After a long time of putting together bits and pieces of information, 19 surcharges have been recorded:
To spice it up, the original 1988 folk dance set has two stamps with a variety of inscription errors, they were surcharged alongside with the regular stamps.
Here is a genuine set of the folk dance surcharges with 1r variety.
More unlisted surcharges may exist, further research has to be done for a better picture.
Almost all 1990s surcharges have fakes - real stamps but forged surcharges. Some sources claim the CPO sold surcharges until late 2000s, if the CPO did, those are fakes too (YES, fakes from CPO). Fellow collector Jean-Marie Florent of Belgium is kind enough to scan some fakes for our reference:
(courtesy: Jean-Marie Florent)
Please click here for part I of this article: "Unlisted Stamps (I)"