Threepenny Plum by Dick Coffee

Newspaper rookie, Alex Woollcott, assigned to produce a story about an aging Colorado adventurer, finds the man and a century-old tale of treasure. Alex soon learns the power of a story—and the danger of chasing a compelling narrative that has the bones to draw a reader into ever deeper waters to find a story's end. Alex is cynical, at first, but he finds his doubts dissolving in the storm of historical revelations that arise from the adventurer's search for—a postage stamp, the Three Penny Plum.

Threepenny Plum