24-10-2025, 03:31 PM
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I agree with Koen.
Based on basic principles, drawings were made in lead or tin (sometimes also in silver).
I find it suspicious that changes or additions were usually made with the same ink used to write the text.
Examples: lead and tin.
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I agree with Koen.
Based on basic principles, drawings were made in lead or tin (sometimes also in silver).
I find it suspicious that changes or additions were usually made with the same ink used to write the text.
Examples: lead and tin.
You are not allowed to view links. Register or Login to view.