That is a wonderful recovery. Have you attempted to find who the medal was won by and what event? Thats what makes this hobby so interesting. Every find has a story. Thanks for sharing.
Looks like an Olympic participant medal. Remarkable.
Look for any identifying marks regarding the participant. You may be able to get a name. Would be great return to the family (unless they got rid of it in the first place).
Congrats Participation Medal. Bronze, 54mm, by K. Räsänen. Stylized athletes’ heads superimposed over the Olympic Stadium. Rev. Male and female
athletes to left holding torches over Olympic rings. EF. ($300) item 458: http://ioneil.com/site/auction/a60/a60bw29-32.pdf