|Powdered sulfur from old chemistry set.
This bottle is from a 1950's chemistry set I got on eBay after consulting this trusty reference book about radioactive collectables. It's an "ATOMIC ENERGY" set (that kind of thing was big in the '50s), but it also includes an assortment of standard-issue chemistry set chemicals.
According to the book's table of going rates for these things, I got a good deal on the chemistry set, though it is not in perfect condition and is missing some components. Modern chemistry sets are pretty wimpy, but I have to say that, aside from the uranium ore and the radium, this set is pretty tame as well. It even proudly claims to contain "no dangerous or explosive chemicals". I mean really, where's the fun in that? Here's a picture of the set:
Source: eBay seller 6tomcat
Contributor: Theodore Gray
Acquired: 10 January, 2003
Price: $58/chemistry set
Sample Group: Powders