Penzance Lifeboat

Any idea of the date of this photograph?

Penzance Lifeboats
3 unnamed vessels in 1803, 1826,1853,
1860 with the (Princess) Alexandra;
1865 with the Richard Lewis.
1884 Dora,
1895 Elizabeth and Blanche
1899 Elizabeth and Blanche (new vessel by a different constructor)
1908 Cape of Good Hope
1912 Janet Hoyle
In 1917 the lifeboat station was closed down.

Because of it's rig and "colour", I would guess at 1908?