CJK COMPATIBILITY IDEOGRAPH-F904 is one of the 512 characters in the CJK Compatibility Ideographs Unicode subset.
The image below shows how the CJK COMPATIBILITY IDEOGRAPH-F904 symbol looks like in some of the most complete UTF-8 fonts: Code2000, Sun-ExtA, WenQuanYi Zen Hei and GNU Unifont. If the font in which this web site is displayed does not contain the CJK COMPATIBILITY IDEOGRAPH-F904 symbol, you can use the image below to get an idea of what it should look like.
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