Sales of some items will also change with the time. For example, a postcard of a 1950s Red Label Rice Wine label showed only average sales, but sales skyrocketed when this brand of cooking wine was discontinued and there was a sudden run on the remaining stock.
銷售量有時也受時事影響，例如一款 50 年代的紅標米酒商標明信片原本賣相平平，卻在幾年前米酒荒時突然大賣。