  Home-made matches in holder. 
As you can see from this and other samples I have listed under phosphorus, there are a variety of styles of "match safes" that were in apparently common use in the past.  Why don't you have a match safe today?  Because matches no longer tend to ignite themselves spontaneously.  Early matches were chemically unstable and had a tendency to decide on there own when a good time to light might be, explaining the popularity of metal boxes designed to contain this situation. 
To make the point, and because I am genuinely concerned about them, I have stocked this holder with a few of the home-made matches I made for one of my Popular Science columns a few years ago.   I have no idea how long they will last before spontaneously combusting. 
Source: Theodore Gray 
Contributor: Theodore Gray 
Acquired: 16 April, 2009 
Text Updated: 17 April, 2009 
Price: Priceless 
Size: 3" 
Purity: <10%
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