Antique 1920s Blue Molded Plastic Pop out Lady Liberty Brooch

Here for your consideration is a nice old Molded plastic Pop out Lady Liberty Brooch that is fashioned after the Berber dimes. It measures 1.5". There is some light discoloring towards the bottom. It looks like dust built up there but I may not sure and I could not remove it with light cleaning. Otherwise in good wearable antique condition.