Bristol Board / Artist's Board / 4 Ply / 8 1/2 by 11 Card Stock Sheets / 60 Unused Sheets in Their As-found Box - Etsy Denmark
Amazon.com: Strathmore 300 Series Bristol Paper Pad, Smooth, Tape Bound, 11x14 inches, 20 Sheets (100lb/270g) - Artist Paper for Adults and Students - Markers, Pen and Ink
Strathmore® 300 Series Bristol Smooth Pad | Michaels