Bolivia, 1917, 10c on 1c Revenue Surcharge, "1917" San-Serif, type 2 surcharge, purple town cancel, deep color, F.-V.F., believed to be one of the rarest Bolivia stamps issued, undervalued by Scott, accompanied by cover piece from which this was removed; signed H. Bloch. Scott No. 102a  $2,000. Only 1,000 examples of both type I and type II stamps were reportedly produced with only 10% of these being type 2. The Scott catalog value for the more common type 1 issue is currently listed at $1,750. $0 (Image)