Student or Learner
He wrote on thick smooth paper which justified the term ‘cream-laid".
Does it mean "which was rightly called cream-laid"?
PS I would add that he's taking the name of the paper literally and equating "thick and smooth" with cream.
So the paper just looked creamy?
Here's a store that sells paper: Cream Laid 100gsm A4 Paper *
*But what color you see there depends on your computer.