The sheet measures 30.5 x 30.5 cm, has a paper thickness of 200 g/m² and a matt finish.
The design paper is from the lovely Sonja Peters aka so.papersblue.
You can find 2 detailed instructions here to help you put it together:
Here you can see how the pop-up roof can be installed:
Download PDF:
Vintage bus instructions
Pop-up roof instructions