Main Question: What is the glyph origin of the Chinese number characters (一二三四五六七八九十百千)?
Related question: Why isn't 四 four lines? (the origin of 一 二 三 四 五 六 七 八 九)
I decide to write a Q&A-style post to discuss this question. What motivates me to do this, is
In that brilliant question asked by @congusbongus, @congliu offers a good reference
象形字典(a literally translation would be Dictionary of Pictographs). The explanation of the question "where does a Chinese character come from" can be easily found on that site, so it is really convenient for those who are interested in the glyph origin of Chinese characters.
However, personally I cannot bear some subjective or illogical viewpoints on that site. It seems the administrator of 象形字典 (Dictionary of Pictographs) hasn't make much efforts on historical issues.
Thus, in this post, I will
provide the mainstream viewpoints on the glyph origins of the Chinese number characters
criticize the subjective or illogical viewpoints on 象形字典 (Dictionary of Pictographs);
post some rubbing pictures to prove my viewpoint.
《甲骨文字典》(Dictionary of Oracle Scripts) by 徐中舒. Published in 1990. It is a dictionary epitomizing fifty-five important references of oracle scripts. The viewpoints on this dictionary are considered to be the mainstream, because most of them are supported by material evidence.
先秦甲骨文金文簡牘詞彙資料庫 (Lexicon of Pre-Qin Oracle, Bronze Inscriptions and Bamboo Scripts). A useful online lexical search tool for Oracle, Bronze Inscriptions and Bamboo Scripts.
漢珍資訊:甲骨文全文影像資料庫. A very good database supporting textual search of oracle scripts on rubbings. A special software is needed to view the rubbing pictures. Unfortunately it is not free now.
《甲骨文合集》(Collections of Oracle Bones). Editor-in-Chief 郭沫若.
《甲骨文合集释文》(Textual Research on 'Collections of Oracle Bones'). Editor 胡厚宣.
《殷周金文集成》(Collections of Bronze Scripts in Shang Dynasty and Zhou Dynasty) by Institute of Archaeology, Chinese Academy of Social Sciences.