Not a Vodder Hack Job!  

Original Legs...
Original legs, better model.

deleted... I think I misunderstood your post.

matching?
are the shelves Arne Vodder?

The sideboard you refer to...
The sideboard you refer to on 1stdibs is all original.
It's just another model, no one altered the legs: they-are-original.
I would 've thought you knew that, when in possession of another vodder-sibast piece.
Google and you'll see dozens of those 'so-called' leg conversions 😀

Original?
I can't find another example of that type of leg on any type of Vodder/Sibast piece. Are you sure? Also, I don't think the wall shelves that are being sold with the piece have anything to do with it, which I find a little odd.
I freely admit, however, that I'm not an expert. This just looks wrong to me, and since my cabinet is exactly the same in all other respects, I assumed the legs were a later add-on. Can someone point to another example of legs like these?

!

Thanks!
Point made. Until now I'd only been able to find this style of leg on contemporary repros of some of these pieces, but it looks like they're original. Was it possible to order this leg as an option on any of the cabinets? Or was it a design change sometime during production? Any information would be appreciated.
Thanks for the education. I'll edit my original message title.

I don't know if they offered different leg options. I think the sideboard in your original post was retailed specifically to the American market.
There are several other Vodder sideboards and chests produced by Sibast that featured these steel legs.

Random question:
If you were designing a credenza like this, would you prefer to use five legs, or would you provide a (visible) stiffener beam connecting the four corner legs, and dispense with the middle one ?
Is one solution more rational than the other (five legs arguably cheaper than four + beams) ? Is one a "better" aesthetic solution than the other ?

I like the 6 legs-option, as...
I like the 6 legs-option, as pictured.

Hi,I know you were...
Hi,
I know you were talking about these particular legs for this particular model but I was wondering if I could ask you guys about these legs on this Vodder tambour door sideboard. I think it's model 75 or 67 going by the pics on furniture index.
Sorry about the small sectional pic - that's as much as I could get in with all the other stuff around it!
The legs are a solid rectangular block, stained black, running from front to back without any stretcher from side to side. When I look inside the sideboard I can see that the legs are attached with two flat head screws each. There's no evidence that there were any other legs attached previously. I've looked at loads of other pics of these sideboards and none have these legs. I wonder are they original?
Have you seen them before? Any help would be greatly appreciated!