a sure investment

I sat on the gift-shop bench while my family looked for souvenirs. We had just finished climbing nearly 300 steps of spiral staircase to the top of a towering memorial. As I leaned against the wall, the display nearest me caught my attention. Filled with clear packages of coins and bills, it offered a selection of replicas of dated money no longer in circulation. One particular piece—the triangular two-bit—especially intrigued me. Similar only in color to a current coin, I mused on its worthlessness in today’s market.