One of 7 Gould Incorporated designs made circa 1978 as a replacement for the large Eisenhower dollar. There are 2 obverse dies noted for this design with the difference being the diagonal lines of the Washington monument. For additional information on modern dollar patterns, see Mike Wallace's article on modern dollar patterns by clicking here. According to Roger Burdette in his book "Private Pattern and Related Pieces International Nickel & Gould Incorporated", these were struck on planchets that started with grooved edges and when struck were placed in a plain edge collar. Some coins still show the grooves but the intent was for these to have plain edges. Examples are known as follows: Titanium (powdered metal) P5445 / RB1600 & RB1700 with over a dozen known including lot 2066 in Bowers and Merena 3/97 sale. Photo courtesy of Bowers and Merena.