Circa 1931 - 1932 this is a Federal Glass Company green Parrot or Sylvan pattern butter dish & lid. The Parrot pattern is a beautiful pressed glass pattern and very collectible today. Unfortunately it was only made for two years so most pieces are hard to find. The square base is 6-7/8" (W), approximately 4-1/2" (H) with lid and 1-1/4" (W) without. The lid is 5-1/4" (W) and round with slightly scalloped indents on 4 sides. Both top & bottom are in great condition - no chips, cracks or repairs. I have 2 extra bottoms, if interested. It is always nice to have spare parts available just in case.