4(2)- Cutting, opening and shutting

Drawings:

C (the first three)
Comment:
It might be the ceiling under the table. When you pull part of the table down, the light come through…
D (the forth one)
Comment:
It reminds me of … old type writer
E (the last one)
It’s the telescope of year 1718 through which the light projects the spiral staircase of 1517 on to the floor of 1818…

Next drawing:
Spectacle case sitting on the table and when you open it, there’s a telescope in it.