Vintage 7 1/2" tall package pictures a huge fly on it. Says the flypaper contains 2-4% Metallic Arsenic, so it is very poisonous. Has two skull and crossbones with an antidote listed right on the package. These were found in original cases, and other than some minor aging or slight edge bends are in great condition. Since there is no listing of weight on the package, they are likely circa 1900. They are unused stock that was found in dry storage in the old Janney-Marshall building in Fredericksburg, VA. These are great for the poison collector. I'm sure you all know this, but I'm going to state it anyway - Please note that the strips do contain arsenic and they are poisonous and should be used for it's intended purpose ONLY!