This is a very pretty Victorian (1837 to 1901) sterling silver enamel charm with a blue flower on a red background. There is some crazing in the enamel but no enamel loss on this old charm. It measures 5/8" x 3/8" and marked STERLING with raised letters which are an earmark of the Victorian era.
The first picture did not come out very well so I have taken more pictures for you to view. Please note that my photographs are highly magnified for ease in viewing details and condition of the item and to point out any flaws or imperfections and sometimes are not visible to the naked eye.
Thank you for looking!