Dart Razor Blade Wrapper

The blade manufacturers would often print messages or advertising on the back side of the blade wrapper, such as this effort for War Bonds. This doesn't necessarily make the wrapper more valuable, it just makes it a different one from one with the same front image that does not have the reverse message. A lot of times, myself included, people do not recognise they have two different blade wrappers because they didn't look at the reverse side.