Approximate Measurements
Artwork Panel: 31.8cm x 31.8cm ≈ 12½" x 12½"
Silk/Brocade Border: 41.2cm x 41.2cm ≈ 16¼" x 16¼"
Discounted/Blemished
Reason for discount: Very minor stray spot in painting. It hides pretty well, so this is a good bargain.
More about this symbol can be found as the first entry on this page: Ki / Qi - Spiritual Essence and Energy.