Why is this 1 Ringgit Banknote so Valuable?

If your 1 Ringgit Banknote has this signature, it's worth more than 1000× it's face value. But why is this the case? What's so special about it? I'll try to explain it to you in 2 minutes.
Music:
Malaysiaku Gemilang
• Merdeka 2007: Malaysia...
Negara Kita Tanggungjawab kita
• Negara Kita Tanggungja...
Cermelang Gemilang Terbilang
• Lagu Patriotik Malaysi...
Feel free to leave any suggestions on what Banknote I should make a video on.

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Assalamualaikum

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Where to change

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Ringgit? 😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂