I’m renovating my MIL’s old house and today pulled up the carpet. The floor is covered in these tiles.
Tiles are 9”x9” and feel carboardy.
History: MIL lived here for over 50 years, this room was originally a cafe and was converted into residential in the early 90’s. Tiles are various colours.
I have pulled a few up as they were damp and damaged and then thought about possible asbestos 