I have found some floppies from some unknown system. They probably were used on some soviet computer located in one of the aircraft factories.
They have different software and utilities. The floppies are standard 5inch 360kb floppies (not sure how they were formatted tho) and have markings CM1810 written in their labels.
I beleive they are from CM1810 computer

The could not be read by most of the DOS or windows software.

I want to save the content for preservation.
I have tried DISK2FDI program and were able to save some data from the disks. But i am not sure if the parameters were correct and the image was properly saves
Inside the image files I saw the following text that might help to identify the system "DOS1810 VER. 3.0", "BOOT.CSD"
On the floppy labels you can see FORTRAN 86, Pascal 86, OS SFL 1, PL/M (all written on russian)
Here is what i have found about this computer (the text is on russian https://www.computer-museum.ru/histussr/sm1800.htm)

I would appreciate any help saving the floppy content.