I have found that this product goes a long ways, have applied it to over 30 weapons (black powder), because of this dry climate in Colorado. Works good on ivory handles of anything, put it on plunder boxes, even on the poles for my small wedge tent.
Give it a try, many of the craftsman on this "list" are starting to use it on their products and on original items as well. Gives a pleasing luster, plus protects the surface and puts a little moisture back into the item, good product for the restorer or the reproduction items you have at hand.
Enought said, not really history per the "list" nature, but if we don't take care of these valued items, they will be history.