It’s a 1908 Gold Indian Quarter ($2.50) Eagle. This was the first year of issue of a new design. There is no raised edge and the design is incluse or below the coins surface. The designer was Bela Lyon Pratt, a Boston sculptor. He was a student of Augustus Saint-Gaudens. Mr. Pratt designed several designs that were used on US coinage. There was a fear that this design would attract germs so it did not circulate well. That fear was not based on facts and so the design was fairly short lived. This design is sought after by today’s collectors but it was rejected by coin collectors in its time.