Pictorial Charm Item Number: Edz4169 from the MOA: University of British Columbia
Round charm, square hole in centre, inner and outer rims on both sides, four Chinese characters on obverse, design of dragon and phoenix, both very simplified, on reverse.
Design similar to a coin, but not for circulation; not from the period it purports to be from (Larson, David).
The representations of a dragon and a phoenix and "double dragon" chasing after a flaming pearl are most commonly used auspicious images in any context in ancient China, not restricted to any classes (Li, Min).