Finnish Stitch 3+2

Tuukkala (Finland)
Kannas (Carelian Isthmus, former Finland; area belongs to Russia since 1940)
Börstil III (Sweden)

Hansen's Notation
UUUOO/UUOOOO

Video (link) "drop & pick" -technique

Finnish Stitch 3+2 UUUOO/UUOOOO

You can read more about the Finnish Stitch Family on page Stitch Grouping by Toini-Inkeri Kaukonen (link).

Finnish Stitch 3+2 front side

Finnish Stitch 3+2 reverse side

In Finland this stitch type FS 3+2 has been used at least in Carelian Isthmus (Leinonen, 2000), and the Tuukkala woman's mitten, about 1200 CE (in Mikkeli), is possibly made with this technique (Vajanto, 2004).