1 Big Leaf Maple (acer macrophyllum) Back and Sides Set.
Back: 53.3cm x 15cm x 2.1cm  (21.0" × 5.9" × .83")each half.
Sides: 89.5cm x 10cm x 6mm (35.2" × 3.9" × .24")

No structural defects in the template area.
Thickness planed top and back.
Kiln dried, currently at 10% moisture content.
Natural.