Valuable stamp collection has its ups and downs – Pittsburgh Post Gazette
 The Money Times |
Valuable stamp collection has its ups and downs
Pittsburgh Post Gazette, PA That's why the world's most comprehensive collection of more than 3000 mistakenly printed upside-down postage stamps owned by the estate of a Mt. Lebanon man is conservatively estimated to fetch more than $4 million at a public auction tomorrow and … Collectors to flip out for rare inverted stamps held by Mt … Collection of bungled stamps on sale Stamp mistakes expected to bring millions |
More: continued here