Yes, you get all four of these doilies. I can imagine them for the useful purpose of prettily protecting your tabletop or even repurposing these into clothing such as fun little pockets or embellishments.
I believe the round doilies are all crochet and the square is possibly tatting.
The round doilies all measure approx 7.5" across, the square one measures 5" across.
All in nice condition for vintage. The doiley with the colored edges has a small issue near the edging. You will find a few little marks on the round doily with the solid center (last pic). The square one has edges that are a little frazzled.