Magnesium —
Photo Credit: (c) 2021 alasnome.com

The Alchemist Discovering Phosphorus — Hennig Brand discovering phosphorus (the glow shown is exaggerated) by Joseph Wright (1771)
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=15154197

Hennig Brand —
Photo Credit: By Joseph Wright of Derby - Public Domain, https://commons.wikimedia.org/w/index.php?curid=15154197

Phosphorus —
Photo Credit: (c) 2021 alasnome

The Book of Abramelin a New Translation —
Photo Credit: http://ibispress.net/?product=book-of-abramelin-new-and-expanded-edition

The Book of Abramelin — The 1725 Hammer edition, first printed version
Photo Credit: By Peter Hammer - Public Domain, https://commons.wikimedia.org/w/index.php?curid=8349302

The Book of Abramelin cover — Dover edition 1975
Photo Credit: By Source, Fair use, https://en.wikipedia.org/w/index.php?curid=44168433

Nicolas and Perenelle Flamel — Portal of the church of Saint Jacques de la Boucherie, funded by Nicolas and Perenelle Flamel in 1389, on which they are both depicted (kneeling down)
Photo Credit: By Abbé Villain - Histoire critique de Nicolas Flamel, Public Domain, https://commons.wikimedia.org/w/index.php?curid=6265472

Nicolas Flamel — Flamel as represented in 1402 on the portal of Sainte-Geneviève des Ardens (from Étienne François Villain, 1761)
Photo Credit: By Étienne François Villain - Histoire critique de Nicolas Flamel et de Pernelle sa femme sur Google Books, Public Domain, https://commons.wikimedia.org/w/index.php?curid=5942376

John Dee —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=62082

Clifford's full armour — at Metropolitan Museum of Art, New York
Photo Credit: By Jacob Halder - CC0, https://commons.wikimedia.org/w/index.php?curid=55960146