Vintage Terracotta Greek Tile Coaster Set

Vintage Terracotta Greek Tile 4 piece Coaster set. I believe it probably was a 6 piece set at one point. They could be used as drink coasters. They could also be used as specialty tiles on a wall or mosaic art piece. Please Note: It seems there was once a soft backing that disintegrated over the years. This is a Vintage set. I wiped them all down with a towel to remove. Can upcycle & make a new backing. Measurements: 3.5" circumference Great Vintage Condition