There are two types of A3 paper provided for use (in addition to the A4 answer paper an example of which was included in this thread ); see the attached file which conatains both types.
There is also 2mm square graph paper.
I hope this answers the query.
For the record, I invigilate at the London exam centre.
There is also 2mm square graph paper.
I hope this answers the query.
For the record, I invigilate at the London exam centre.

