This is a nice, green Anchor Hocking, Colonial, aka Knife & Fork pattern, oval serving platter. This pattern was manufactured for only two years, between 1934 and 1936. This piece fluoresces when placed under a black light.
This platter is in very good condition. It does have one piece of trash trapped in the glass, as was common at the time it was made, due to primitive manufacturing methods.
Take a look at the pictures, and if you have questions, please e-mail.