Pre–wetting fabrics on left to dip into the iron bath on right.
Golds immediately turned into olive greens.
Osage Orange dye mordanted w/ Tannin + Iron, Tannin + Alum + Iron, Alum, and Tannin + Alum
Step Seven: (Optional) Mordant after-bath of iron to "sadden" or darken the colors.
Iron turns the golden colors into olive greens!