Making and Knowing
A minimal edition of BnF Ms Fr 640 in English Translation

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Moulding stucco promptly

Crush and pulverize finely brick or Armenian bole or sanguine and incorporate it with melted wax, and thus melted, cast like the others on a relief medal, and so you will have a hollow mold where you will be able to cast ground paper or cimolee.

at left top margin of folio 012v

Finely sieved brick is better, since bole is too fat