it doesn't quite fit into the category of an antique cameo with a c. 1939 date.
Ashley could you describe the color of the cameo material in more details. is it dark brown, orange- brown? Is the surface of the cameo shiny or matte Is there any variation in the color, is it a lighter shade in some places, and in particular within the subject itself?
Unfortunately, there are some excellent composite cameos in the marketplace.