paperwhite 20

Went to the SMFA Winter Sale. They sure arent shy about prices. Maybe they would sell more if they priced it a bit more modestly. Isnt it better to sell something than admire it on the gallery wall?
Didnt buy a thing, but a sheet of this lovely black paper (Arches?) and a white marker. I dont know what it is, a cross between chalk and a pencil... chawcil?