This WW2-era sterling and enamel heart charm would have been worn as a charm or pendant by a woman who had a son in the military at the time (or possibly a husband or sweetheart). 'Son-in-service' jewelry is generally found enameled in red, white, and blue with a star, or multiple stars if more than one son was serving. Many items can be found with two or three stars denoting two or three sons actively serving at the same time. The mixture of pride and fear at having even one of your children serving during wartime, let alone two or three, must have been tremendous. This heart is beautifully enameled with what looks like a tiny flaw at about 7 o'clock in the red enamel. Visible in the greatly magnified photos, it isn't easy to see with the naked eye.
The back of the heart is marked sterling.
Shown in the last photo next to a dime for scale.
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