ErrorCoin

ErrorCoin

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Photos from ErrorCoin's post 07/07/2026

Pengenalpastian Ralat

Rupa Visual: Garisan yang timbul dan tidak sekata memanjang dari bahagian atas bintang berbucu 14 ke bawah melalui bulan sabit.

Punca Pembentukan: Apabila acuan syiling menghentam ratusan ribu planchet, keluli alat mengalami tekanan yang melampau dan mula retak. Semasa proses hentaman, tekanan yang besar memaksa logam planchet masuk ke dalam retakan, mengakibatkan garisan yang timbul pada syiling yang telah siap.

錯誤識別

外觀特徵:一條凸起的、不規則的線條從十四角星的頂部向下延伸,穿過新月形圖案。

形成原因:當硬幣模具沖壓數十萬枚坯餅時,工具鋼會承受巨大的壓力並開始出現裂縫。在沖壓過程中,巨大的壓力會將坯餅的金屬擠壓到裂縫的縫隙中,從而在成品硬幣上形成凸起的線條。

Error Identification

Visual Appearance: A raised, irregular line extends from the top of the 14-pointed star downward through the crescent moon.

How It Forms: As a coin die strikes hundreds of thousands of planchets, the tool steel experiences extreme stress and begins to crack. During the striking process, the immense pressure forces the metal of the coin blank into the crevice of that crack, resulting in a raised line on the finished coin.

06/07/2026

"Ring bersirip" ialah ralat di mana tekanan hentaman yang berlebihan memaksa logam ke atas antara acuan dan kolar. “鳍状边缘”是指由于冲压压力过大,导致金属从模具和模颈之间的缝隙向上凸起而造成的错误。A "finned rim" is an error where excessive striking pressure forces metal upward between the die and collar.

06/07/2026

A "finned rim" is an error where excessive striking pressure forces metal upward between the die and collar.

Photos from ErrorCoin's post 06/07/2026

$1 Malaysia 1971 Extra Die

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