This is a beautiful and hard to find dish.  Can be used for butter, cheese, or whatever use you desire.  Its in amazing condition for its age, it is a gorgeous piece of vintage glass.   Perfect piece for any lover of vintage or someone looking for a unique vintage piece to add to their home.  Due to the age and manufacturing of this piece it has the typical air bubbles within the glass.  ELSON GLASS CO. No. 90 DEWDROP (OMN) by Elson Glass Company (Martins Ferry-OH, Company Operated: 1882-1893), 1887 Introduced.
 
This piece has some wear along the edges, shown in photos.  They were not noticable to me until I ran my fingers along the edge and looked closely.  The butter dish is in good vintage condition, especially considering the age of this piece.

Dimensions are 5" high, by 7.5" diameter.