Yarn over the hook twice, insert the hook through the loop of the next chain stitch, yarn over the hook and draw the hook through the chain stitch only you now have four loops on the hook. Yarn over hook and pull through the first two loops only.
Punto alto doble (pad)/ Bride (br) /Staben (Stb)/ Mezza Alta(m.alta)/
ponto alto duplo (pad)/ Kahekordne sammas - 2s/ Slupek podwojny
Yarn over the hook and draw through the remaining two loops