I ran on strange speaker boxes from early 60s, or even older - big boxes (size of KEF Concerto original first series or slightly bigger), on little wheels, so floor standing boxes with low frequency driver in its own box that is attached via set of springs to the wooden plate; that wooden plate is slid into the main enclosure (the one that is on wheels) and holds the bass box in the air inside the main cabinet that is only visible. If slightly pressed down from behind, it will bounce few seconds before coming to still. If pushed forward it will immediately come to still, maybe slight bouncing before becoming still.
So, it is designed to keep the bass speaker out of contact with the floor through its enclosure by being hung on the main box. Springs make no audible sound if the boxes are gently moved.
The high frequency driver is inside the main box, the brand is Peerles, however the model number is not visible. I don't know what driver is used for bass, it has a fabric protection on its own on its enclosure, and would need to open the box. It is closed from the back with a number of screws, and the speaker can only be accessed from the back.
This allegedly came as part of the home system that was powered by an ordinary big Blaupunkt or Telefunken radio, and needs to be opened and checked, most likely rewired and equipped with a crossover, as tweeters have separate cables and I don't know what is in the bass box beside the speaker...
As I never saw something like this - is this some known design, does it make sense to restore? Is this system of bass box hung in this way something that makes sense?