Look after it.
Nobody else will know why.

Wipe with a soft, dry cloth. For a mark, a barely damp cloth and nothing else; let it dry flat, away from heat. Do not machine wash, bleach or tumble dry. Stuff it with paper when it is not in use so it keeps its shape.

Brush off dust when dry. If it gets wet, let it dry at room temperature, never on a radiator. The fluorescent weave fades in strong sun over time, like any dyed fibre.

Wipe with a soft, dry cloth. No solvents, alcohol or polish. Keep it away from direct heat, and do not fold or crease it: it runs across the base and is meant to stay flat.

Wash cold, inside out, with similar colours. Do not iron the print, do not tumble dry, dry flat. Black stays black longer away from direct sun.

Hand wash cold or use a delicate cycle. Do not wring. Dry flat in the shade. Iron on low, inside out, never on the print.

Keep the certificate away from direct light and humidity. It is the only record of the value outside our books, and it travels with the piece if you ever sell or give it away.