Taka, I think you are quite right! On the shelf to the right of the blue flag, it sure looks like an Oscar to me.
Thanks Jim,I also think that the possibility of this statue is Oscar is high.
That photo,i picked up from the official homepage of James Stewart Meuseum. http://www.jimmy.org/files/28.jpg
However, there is no caption, no taking a picture data(when taken).
There is a possibility that is the replica too.
So, against DukePilgrim's question,i can't give an adequate answer.
By the way, Where is Duke's Oscar now?