Hook size recommended is 1.75 - 2.00 mm.

The pattern recommends approximately 50 g of gray cotton thread in size 5.

The actual size of your doily will depend on the size thread you use, the size of your hook and your tension.

The name of the pattern in German “Deckchen mit Bogenrand” roughly translates to “Crochet doilies with scalloped” according to Google.

Called “Napperon avec arceaux” in Sabrina Tous les Ouvrages 58.