VERY FINE. A REMARKABLE BLOCK OF THIS RARE SURCHARGE, SCOTT NO. C17. ONLY EIGHT UNUSED EXAMPLES EXIST IN TOTAL - FOUR CONTAINED IN THIS BLOCK.
The Cruz-Bortfeldt book places this item under the "Forero" reprints of 1923 though we believe this to be the original surcharge (of Colomphil 2) as a) no covers are known (other "Forero" reprints were used on cover and sent by him) and b) the "1" could have easily fallen out of the surcharge and placed back inverted. No used examples are recorded.
Each stamp with small backstamp. With 2000 P.F. certificate. Scott Retail as singles $5,000.00.