What is this sitting on my kitchen counter?

You guys and gals are amazing!

Once again, mystery solved.

As said, the Thetford dispenser bases:

Someone said "next to the knife holder no where near the sink"

The O/P said they are on the kitchen counter (which is where I'd park a knife holder if it were not attached to the wall behind said counter)

I guarantee that is near the Kitchen Sink.. Within 3 feet likely 1 foot.

Yep, soap dispenser bottle holders. Our old Award TT had them. I just filled them with regular hand soap and dish soap. however mine were mounted behind the sink.

soap dispenser bottles

I guarantee they are thetford bases for those soap dispensers. They also have sanitizer dispensers so that's why they probably had two. I had those exact bases and that is what they're for.
The bottom of the bottles have a nipple that snaps in those holders. Not sure if thetford still makes them but you can find on eBay. That's where I got the picture from.

Thanks for all of the input. I bought this RV from a bloke named Tony from Australia and he is down-under by now. A good chap, but he was not the original owner either so he probably doesn't know anyway. I am leaning towards those of you that suggested a base for an appliance of some sort. Seems like overkill for soap dispensers, since they are drilled and mounted into the countertop. Again, thanks for all your help.

Totally guessing here, but nothing that originated with the RV, and possibly bases for some previous owners' kitchen devices.

Maybe they put something else in the pump bottles? Olive oil and canola, for example? Or soy sauce and rice vinegar?