Although fiber preparation fits this definition, separate criteria exist for Spinning and Dyeing. The use of potentially lethal period processes without modern safeguards will disqualify an entry. Entrants who use equivalent methods with appropriate safeguards, and who note the reasons for substitution, will not lose Authenticity points. At least a 3x5 card, more is acceptable. Approximate date and place in history.
Materials used are period OR give period effect.
Materials, procedures and finished product are consistent with one another and give period effect. Difficulty of tools used in process. Difficulty of techniques attempted. Variety of techniques attempted. Amount of time involved, including research.