Photo conservator Jens Gold shows is what those blueprints are all about.
Behind the camera: Ingri Østerholt
Some of the information mentioned in the video:
The two ingredients to make Cyanotypes are Ammonium Iron lll citrat (the green one) and Potassium hexacyanoferrate lll (add water and sun)
Sun Gardens - Cyanotypes by Anna Atkins (by Larry J. Schaaf)
Cyanotype by Mike Ware
If you have questions, please contact Jens Gold email@example.com
Direct on Facebook 25th June 2020