I started by making a wrought iron spiral stair in the same style as those in my previous spiral stairs upload that are meant to be enclosed by walls on at least three sides. This style should not be used as freestanding stairs like the Maxis spiral stairs (they'll work fine, but they look strange without walls).
When I finished with those, I thought it would be nice to have a "Maxis style" wrought iron spiral stair...the freestanding type. So I made those too. Each version has a left and right spiral staircase and the "enclosed" version has matching left and right handrails. All the meshes are slaved to the master staircase...the left spiral of the version meant to be enclosed with walls. As with my previous set, the stairs in this set were not cloned from the Maxis spiral stairs. They use Marvine's custom animations for spiral stairs and don't depend on the Maxis animations to work in the game. You do not need Marvine's stairs or her animation files for these to work. All the stairs are base-game compatible so even if you don't have AL, you can have functioning, animated spiral stairs.
Since these stairs are "Maxis Match" and I ripped apart, poked, prodded, reshaped and reassembled the Maxis meshes from the game's "WroughtWright Inc. stairs" to make both styles, the poly count is comparable to the Maxis stairs.
Next I made seven recolors in gray, old brass, oxidized copper, rust, verdigris, white and worn white. After I finished the recolors, I thought "maybe I should recolor Numenor's recolorable modular wrought iron stairs to match my spiral stairs". So I made seven recolors of those stairs in the same textures as my stair recolors. Then I thought "since the spiral stairs would need the Maxis wrought iron fence so the poor Sims wouldn't fall into the hole they make in the floor, I made seven matching recolors of that too. Then I thought (I really have to stop thinking so much) "if the fence has all those recolors, wouldn't it be nice to have matching recolors for the Maxis wrought iron gate too?". Voila! You get seven matching recolors of the gate.
All the spiral stairs appear in the catalog under Build/Stairs. I've categorized the handrails to appear in the same category as the stairs to make them easier to find and use in the game.
The stairs were tested in a vanilla game with all expansions plus M&G.
Files are compressed.
I've included a recoloring .psp file in the download with instructions for its use. I also included a layered .psp file to aid in recoloring Numenor's modular stairs so they match the spiral stair recolors anyone might make.
Here's wishing you and yours a joyous Holiday Season overflowing with merriment and cheer and a very happy, prosperous and blessed New Year!