Pictorial Charm Item Number: Edz4265 from the MOA: University of British Columbia
Round, square hole in centre, inner and outer rims on both sides, four Chinese characters on obverse, animal design including tiger and snake with leaves on top on reverse.
Probably used for hanging or display (Larson, David). An amulet used as part of ritual paraphernalia at the May 5th Festival to keep harmful things away such as: dangerous animals, poisonous bugs, evil spirits, etc. Presumably worn by children. Has small holes for stitching onto children's clothing (Li, Min).
Representation of five harmful creatures on reverse: three-legged toad, tiger, spider, snake, and centipede.