Sawtooth 2 is a diagonal sawtooth that was discovered by David Bell on July 9, 2005. It is currently the smallest sawtooth in the sense that its minimum repeating population of 262 is the least of any known sawtooth.
The pattern works by using 180-degree glider reflections from a 136-cell Cordership. A single figure eight reflector is used to delete two outbound gliders with each returning glider.
The number of alive cells plotted versus the number of elapsed generations roughly forms an ever-increasing sawtooth graph.