Bayonet on the far left is a No.4 Mk.II* of British manufacture with plastic scabbard and Indian made frog.
Next is a US made No.4 Mk.II Bayonet made by Savage, and a "Victory Plastics" Scabbard.
In the middle is a No.4 Mk.II made by Long Branch in Ontario, Canada, along with a Canadian made Pattern-1937 Bayonet frog.
To the right of that is another Long Branch made No.4 Mk.II with a Canadian Pattern-1951 Bayonet Frog.
And last on the right is a British made (I think made by Lucas) No.4 Mk. III bayonet and a Pattern-1944 Bayonet Frog.
Mark
