P17 Bayonet without grooved grips.

[Time Bandit]

I concur. Model 1917 and Pattern 1914 are identical bayonets

Yep identical, but as far as I know the British never used the name Pattern 1914, it was always the Pattern 1913? Even though the rifle changed to the P14, the bayonet, as far as I know anyhow, retained the P1913 name and wasn't renamed to the P1914 like the rifle?