China; 2023 20 Yuan Thousand Miles Rivers and Mountains Coloured Silver coin set of 3 in NGC slabs, all grading PF70 Ultra Cameo. Each coin contains 60 grams of. Only 8,000 of each coin minted. Philatelics (Australia) Pty Ltd are stamp and coin dealers and auctioneers that have been trading full time since 1976. We trade from the Ground Floor at 89 King William Street, Kent Town, S. We are registered for the G. Local buyers can collect from our premises during our trading hours.