A Chinese export metalwares easel back photograph

probably by Po Cheng, Hong Kong, circa 1900, of nominally rectangular portrait form, the border engraved with birds and prunus, with applied flowers to the sides and base and topped by a bat, around an oval aperture, with a simply knotted wire support

Footnote: The bat is a symbol of happiness and joy. The Chinese for bat sounds identical to the word for good fortune making bats a popular Chinese rebus.