Write a reference-sample brief Separate observed features, unknown history and buyer priorities. Reference identity Record: Source product, location, face, received date and sample ID Project detail: ____________________ Confirm: Photograph before division Use history Record: Age, exposure, washing, loading, contamination and repairs if known Project detail: ____________________ Confirm: Mark known and unknown facts Control zones Record: Protected, exposed, worn and cut-end areas Project detail: ____________________ Confirm: Annotate physical sample Match priorities Record: Colour, width, thickness, weave, hand, stretch and performance rank Project detail: ____________________ Confirm: Buyer signs critical features Comparison method Record: Measurement, light, handling state, assembly or test for each critical item Project detail: ____________________ Confirm: Apply to reference and trial Sample permission Record: Available length, destructive analysis allowed, retained twin and return need Project detail: ____________________ Confirm: Approve cutting plan A reference may not reveal original fibre, finish or processing. State uncertainty and use buyer-approved trade-offs when an exact construction cannot be established. Sinicwebbing — https://www.sinicwebbing.com