Fritz Hansen, Slagelse Mobelvaerk, and JL Moller?  

I wouldn't think anything of the lack of marking on the chairs.
HP Hansen is what the mark says. If you can get it for nothing, it might be worth getting. There was probably a version with legs and an apron. It would be a nice looking sideboard with legs. It would at least be appreciated by someone who won't trash it.

Thanks Leif! Just found it as I got your response, plugging in various consonants in front of 'Hansen."
I agree, it would be much better with legs. I thought about what it would take to build a stand for it, as I have some teak laying around, but not sure it is worth it. It is pretty tall already, and legs would kind of throw off the proportions of the thing. Also, I am buried in home projects, and furniture refinishing projects. Guess if it is still there at 4, I will have to make a split decision...
Also good the hear on the Volther chairs. They are quality materials, and pretty descent construction ... but I will probably eventually sell them and see if I can find a reasonable priced lone Model 77, so at least I have an even 6 dining chairs. Of course, if I can find 2 Model 57s too, then I would have a set of 6, plus the 2 head-of-the-table chairs ... perfect.

Does your tea cart measure:
29 1/2" wide
19" deep
23 1/2" tall
?
If so I think I know who designed and made it.

Yes, more like 29 5/8" but that is really splitting hairs, isn't it? I cannot find my metric tape measure right now, but I suspect it is metric, since is not exactly 29 5/8" either.
Maybe you can feed me a hint or two if it is on the internet....if it is locked away in an old catalog, I probably wont be able to find it though...

I think that 1/8" is splitting hairs. Maybe 1/8 hairs.
It is tucked away in a catalog. At least that is where I happened upon it lookI got for something else entirely. Maybe you can find it on the Internet somewhere. I don't know. It was designed by Kurt Østervig for Jason.
The catalog shows it with the other style of casters prevalent on Danish tea carts, but I've seen them flip flipped before, so I don't think too much of it. They were off the shelf stock furniture parts made by someone else, anyway. Catalog is from 1963.

Wow, I really appreciate the help on this. It probably would have taken me years to figure this one out. I saw one other on the internet during my original search, but it was an unattributed sale on Etsy. Also had the older, traditional casters you speak of. I was wondering if they were switched out at some point...
Now with the accurate information, I am still only finding one rosewood version, again with traditional casters.
Thanks again, your reservoir of knowledge and resources, never ceases to amaze me!