How to use "blotter" in a sentence

Cosette had brought her letter case and blotter with her, Valjean his box of child's clothing and the old National Guard uniform which all respectable men possessed, and which he had worn under a previous identity.

Cosette's blotter was lying on a cupboard just below it and, as Valjean stared at its reflection, he read the following lines:

After a short time, he rose to his feet and looked again at the blotter

He stared at the blotter, coldness in his eyes, the darkness of the deepest night in his heart