THE EGG DIAGRAM.
A, heavy wire axle in wood bearings; C is wire attached to back of E, top part of egg; B is some wire running to the levers; D is weight which pulls E open; when the lever pulls down it closes egg.
The egg frame was made of wire in two parts, and made of tissue paper and carpenter’s glue, painted with white zinc, and sprinkled with white flickers or diamond dust. This was made separate and then placed between star and back of window.