A 1904 French document "Les Detraquees de Paris" (Les Detraquees de Paris) records the appearance of realistic sex dolls in detail. The book records that Dr. P showed him the sex dolls he created. These dolls are lifelike and can be inflated and heated. The production cycle of each doll is 3 months, and the price is about 10,000 francs.

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Dr. P also said that the three-month work will include a well-designed inner frame, head and body hair, teeth and nails, skin coloration, vein patterns, eyes and tongue. He also clarified the reason for his anonymity: "Unfortunately, I can't publicize it publicly. The police have been interfering with my business, and I had to put some fat sex doll near here, so that I can say that I am a deed. The person who made the inflatable model at the fund show."

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For most of Western history, attempts to copy human images, especially for sexual purposes, will be regarded as blasphemous and will undoubtedly be punished by law. In the East, human models cannot be made casually, and serious cases may be regarded as arrogant.

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In the study of these French records discovered, it can be seen that the silicone sex doll making technology at that time was already very advanced, the appearance was lifelike, and the function could even imitate ejaculation. Although these research projects have been kept underground, their technological development has been very rapid.

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