First separate the ceiling rose and pinnacle from the sprue.
Insert the ceiling rose into the hole in the centre of the ceiling.
Ensure each petal tip slots into one of the ceiling ribs.
Insert the pinnacle into the hole in the top of the roof section.
Push down for a snug fit.
Next fit the railings to the base section.
Ensure all the lugs locate in the relevant holes.
Push for a tight fit.
Next line up the railings with the channel that runs round the inside edge of the ceiling.
Push the roof section down to complete the model.