Taking bamboo slips as the prototype, I Ching gold/Silver letters, in forms of pure gold/silver material, integrate Chinese classic works and inherit Chinese traditional culture and infinite wisdom. It unfolds classic statements from original works via sandblasting and mirror finishing technique on the front side, and illuminates the gist of the collection by pattern of Fuxi’s Eight Trigrams and portrait of King Wen of the Zhou Dynasty on its reverse side. Each letter is composed of 20 pieces of metal slips (pure gold specification: weight of 400 grams and 1000 grams; pure silver specification: weight of 200 grams and 500 grams), marked with weight, materials and unique collection number. Both the collection number and identification certificate code are matching each other.