Vintage Yellow Flatware Tray #350 made by Transparent Specialties Corp. The manufacturer marking is Transparent Spec. Corp. and this is very similar to older Rubbermaid, it bends and feels like rubber. Measures 10 1/4" x 13 1/2". No cracks or chips, has some soiling from storage that will mostly clean up with some effort I am sure - see the detailed photos.