The tumbler is the smallest known and first discovered period-14 oscillator and was found by George Collins in 1970. It was the only known period 14 oscillator until the discovery of 44P14 on April 21, 1997.
Tumbler is about the twenty-eighth most common naturally-occurring oscillator in Achim Flammenkamp's census, being less common than octagon 2 and unix but more common than tub test tube baby. On Catagolue, it is the only known period 14 oscillator to have occurred naturally.
In August 2014, Bob Shemyakin found a 6-glider synthesis for a tumbler. In January 2020 a cheaper recipe was found by a Catagolue-based randomized 5-glider search.
- 16P14.1 at Heinrich Koenig's Game of Life Object Catalogs