Saved RML Shell

Hi,
This is what i believe to be a Armstrong lead coated navel shell at a guess about 1855-1865 minus fuse. I recovered this from a old boat store that was being demolished to make a holiday home. Fired from a ironclad maybe?
If any of you fuse experts out there could tell me what type was fited that would be great. At the moment it's a very heavy doorstop.
Weasel.

And a view of the top. The threads have been stripped, not that the picture shows that.
Weasel.

19th Century 6 64lb Rifle Muzzle Loading (R.M.L.)
Projectile, Land/Naval Service Black Powder filled. In service 1890 - 1908 with wooden nose fuze.

6" (64lb) RML shells
Most common size found is the 6" (64lb) shell, but 9" & 12" are frequently seen as well. These guns were rifled with 3 or 5 or more coarse grooves, the shells carried a series of Copper / Bronze studs which rode in the grooves to impart rotation to the shell on firing. Because the shell had to be a fairly loose fit in the guns bore to allow it to be loaded, a large copper disc was first placed on top of the powder charge before the shell was loaded.
Two types of Gas Check "Obturator" or "Gas check" would be forced onto sharp radial ribs on the rear of the shell on firing and through this grip would spin the shell to stabilise it in flight. These can sometimes be found but are usually badly damaged.

Thanks for the info jayteepee_1999. Would (no pun intended) the wooden fuze be a screw in type? as i have not seen any of those before. And the fuze hole has a long brass or bronze thread. Maybe for an adapter ring for the fuze?.
Thanks again Weasel.

weasel if you go onto the 3rd page in the identification section ,the second post down is wooden time fuze ,theres a few pictures in there that may interest you ....spotter

Thanks Spotter.