Image #1
WORLDWIDE AIR POST STAMPS AND POSTAL HISTORY
Bolivia
Lot #
62 | **/* 
| Scott # C15a
| 1930, Zeppelin issue, inverted red overprint on Aviation School stamp of 25c blue and black, bottom sheet margin block of four, full OG, NH or LH (top stamps), VF and scarce multiple, C.v. $600 as hinged singles, Est. $400-$500 . |