Never seen anything made out of that in the shop. How expensive is it? And what do we think about this? > Waxed cotton came in either black, or an inconsistent

Never seen anything made out of that in the shop. How expensive is it? And what do we think about this? > Waxed cotton came in either black, or an inconsistent dark olive. Colour was controlled by the amount of copper left from the cupro-ammonia treatment.