Just one of the Google search results;https://en.wikipedia.org/wiki/Ammonia_fuming
The book "The Furniture of Gustav Stickley" goes into in great detail for a few pages.
Regular household ammonia won't really do it. I stuck one piece of White Oak in a large clear bag "Chamber" in the greenhouse a few yrs back...and it was 4 days before a slight color change was observed.
Also excuse me for furthering the fallacy saying "Tannic Acid" instead of "Tannins".....I read too many old books,and have heard Tannic Acid from various sources with may years experience from brain-tanning hide Native Americans, to professional tea-tasters, to my Dad, and other trusted folk.
JUST looked up Gustav on Fuming and he specifically said "Tannic Acid"
"While tannic acid is a specific type of tannin (plant polyphenol), the two terms are sometimes (incorrectly) used interchangeably. The long-standing misuse of the terms, and its inclusion in scholarly articles has compounded the confusion. This is particularly widespread in relation to green tea and black tea, both of which contain tannin but not tannic acid."
Learn something new every day