Help required with a Naval Cutlass

Hi again.. I wonder if anybody could comment on the attached. It is supposed to be a Naval Cutlass but Pop had it down at two different dates.
Attachment 85859Attachment 85860Attachment 85861

Definitely intended to be attached to a musket or rifle too.

A consultation of the Skennerton bayonet bible suggests it is an 1859 Pattern Naval Cutlass Bayonet - 2nd variation. Used with the 1853 Pattern Enfield Rifle Musket.

I think that's an 1859 Naval Cutlass Bayonet...looks like it from what I can see. If so it's a pretty scarce item. The scabbard alone is hard to find because leather didn't survive. Here's a link to examine all of these closely. Bayonet Collection Presentation

Used with the Enfield Pattern 1858 rifle.

For the P1858 Naval .577" rifle for the Royal navy. Another seemed like a good idea at the time combination weapon which in reality is an awkward badly balanced item when fixed to a rifle. Some were later converted to fit the Martini Henry.

Regarding the First picture post 1, the 1888 bayonet with 3 rivets is very desirable but only on condition, PM sent.

See pic from Skennertons book dimpled hand grip is the give away the other type mentioned does not have a dimpled grip.