How to crocheting a handkerchief

Measurement:
250 mm x 250 mm aprox.

Materials:
20 Grams fine mercerized cotton yarn, linen fabric; steel needle No. 1

Stitches:
Chain Stitch, Slip Stitch, Simple Crochet, Double crochet, Picot Stitch

Realization:

Cut the fabric. If this is necessary, make a narrow hem all around or puncture the fabric with a punch. Start crocheting at an angle and chop the needle into the fabric.

1°r: with s.c. Close the r. with 1 s.t. stung on 1° s.c.

2°r: 4 ch *skip 1 s.c., 1 d.c. stung on next s.c., 1 ch* rep. from * to * across all the r. and finish it with 1 s.t. stung on 3° ch counting from the bottom

3°r: 5 ch *skip 2 d.c., 7 d.c. stung on next d.c., 2 ch, skip 2 ch, 1 d.c. stung on next ch, 2 ch, 1 d.c. stung on next ch, 2 ch* rep. from * to * across all the r. and finish it with 1 s.t. stung on 3° ch counting from the bottom.

4°r: 2 s.t. stung on next 2 ch, 3 ch, 2 d.c. closed together stung on next 2 d.c * 2 ch, 1 picot and 3 ch, 3 d.c. closed together stung on same place where you crocheting last d.c and next 2 d.c. 2 ch, 1 picot and 3 ch, 3 d.c. closed together stung on same place where you crocheting last d.c and next 2 d.c.

1 ch, 1 d.c. stung on central arc of 2 ch, 1 ch, 3 d.c. closed together stung on next 3 d.c.* rep. from * to * across all the r. Close the r. with 1 s.t. stung on center of 3 d.c. closed together

Cut the thread and finish.

References:
r.: row
ch.: chain stitch
s.t.: slip stitch
s.c.: simple crochet
d.c.: double crochet