Nice table
I collect lots of old Polish tools, but I haven't came across this brand (WARKA). It is a very popular name in Poland, there are a lot of companies using it. There is even a beer brand called that.
Unfortunately I'm not going to be much help about the company. I found another table similar to yours (12in instead of 10in) on a local ads site. There is no description other than condition and price, plus photos attached below. The guy listed it for 2k PLN ($450) with a note the price can be negotiated so he will probably take a bit less.
The only other mention I found about that company in relation to machine tools is a guy on a polish forum with a milling machine made by the brand. The milling machine type is WARKA FRN25A2. I looked for a manual for the machine as manufacturer details woukd be there, but I found nothing.
The fact I found so little about the brand in Polish may suggest it was a "straight to export" brand. This "Poland no X" written on the side, and inch dimensions. Back in the old system there were many products made for export. Usually brands like Bison Bial and others just made versions of their domestic products for the export market(in inches). This is the first time I see a Polish brand I can't find any domestic products for.
I looked at rotary tables made by other Polish makes, but this one doesn't strike me as similar to any (casting resembles Chinese brands, but the handle is much better on this one). So that's all I can find.
Here is the milling machine. It's overall shape is very different than typical Polish mills.it reminds me of a Taiwanese manufacturer. Another connection to the far east perhaps? Maybe they had their castings made there?
Back in the old system (North) Korean lathes were quite popular, but I never encountered any Chinese tools.