These packs are made in-house by our staff members to share a bit of the 1830s stationary with everyone.
This pack of powdered black walnut husk may be mixed with 100 ml (about 6 tbsp) of water to make approximately 2 penny-ink's worth of rich, dark brown ink.
The resulting ink is fluid enough for use with our goose-quill pen and fit well in our penny ink well.