"I did a little googling on this subject of brown running out of black ink and learned that black ink can be made up of a number of different pigments. With the right conditions it's very likely that more colours could have become visible. "
"This A6 (postcard size) extra thick paper card purchased at HEMA as part of a pack of 50 such cards (KAARTEN extra dik papier; CARTES paper extra épais; KARTEN extra dickes Papier; TARJETAS papel extra grueso) functioned as a template to hand…"
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