An animated naval gun turret, based on a British 15 inch turret Mark 1. The figure represents a person 5 ft 8 in high (172 cm).
1. Platform deck
2. Shell room
3. Lower deck
4. Magazine
5. Middle deck
6. Trunk
7. Main deck
8. Barbette
9. Working Chamber
10. Upper Deck
11. Roller path
12. Cradle
13. Gun-house