About 15 years ago at a midwestern yard sale, I came across an old but good Browning A5, FN as I recall, 12 ga., with plain barrel, at a price far too low to pass up. I prefer light doubles afield, so bought and cleaned it to resell. In the hole behind the butt plate shone a gilded Indian head penny, cased in a gilded ring stamped "Lucky Penny--1904 St. Louis World's Fair". Soon after, I sold the gun for a fair profit, but still have the penny.