1. Centre wheel bearing, main plate
2, 3. Escape and third wheel bearings, main plate
14 to 17. Third and escape wheel diafix cap jewels and lower balance diashock setting
18, 19. Centre wheel bridge and bearing plate
24 to 29. Centre wheel, diafix settings, transmission wheel pivot (train wheel and barrel bridge)
30, 31. Balance wheel diashock setting
The story of the sum of the parts can be found here.