Sir, the Wilmington boats MIGHT be CSS Raleigh and CSS North Carolina. Raleigh broke her back in May of '64 and was stripped of valuables. North Carolina was riddled with shipworm, deemed unseaworthy and was stripped of guns and ammo. She sank in Sept '64. Since your article is dated 07 Sept 1864, would word of Raleigh's demise gotten to Britain by then? It might also be the unnamed vessel CSS
'Wilmington' which was started in '64 but burned before completion in Feb '65. Also maybe CSS Arctic? But she was stripped of her machinery in late '62 for CSS Richmond.
View attachment 560804
CSS Tallahassee / CSS Chickamauga? While not 'ironclads', both were armed iron ships based in Wilmington. If reporting then is anything like it is now, every gun an assault rifle and every warship a battleship, who knows?
Please see...
Confederate Shipbuilding on the Cape Fear River
Edwin L. Combs III
The North Carolina Historical Review
Vol. 73, No. 4 (OCTOBER 1996), pp. 409-434 (26 pages)
North Carolina Office of Archives and History
...article can be accessed on post #112 of thread
https://civilwartalk.com/threads/civil-war-naval-papers.191020/
@rebelatsea would have a much better handle on this...
HTHs,
USS ALASKA