I believe Dr. Hopkins had a number of models he'd periodically rotate on table display. I remembered the one above on the table when I stopped up once to the manor house, as I had made note of the strange hieroglyphs. There was a little man inside the cockpit, but the plastic bubble covering the cockpit was a bit opaque and hazy. This was likely the original model from 1954, manufactured by the Lindburgh Company.

Usually, the illuminated model was in steady use in the John Hopkins Spring mansion, and the saucer was lit up every evening it was there.

(Image courtesy Kimberly A. King, of Altamont, TN, Amazon Customer)