2 tablespoons soap powder, like Ivory Snow (not detergent) or scrapings from a bar of soap
1/4 cup hot water
1 tablespoon turpentine
Dissolve soap powder in hot water. Add turpentine. Use when cool.
To use, dip a brush into the ink and brush over the picture to be transferred, wait about ten seconds then place a piece of paper over the picture and rub the back of it with a spoon. The picture will be transferred to the paper. If the ink solidifies in its container, set the bottle in a pan of warm water to melt, then shake well before using.