Finnish Turning Stitch
Rautjärvi, Joutseno (Finland)
tr = 1 loop 'turned', needle tip to right
UUO Down U/O Up UOOO
In Finland this stitch type has been used especially in the South East and Carelia. Samples in the NBA ethnology collection, labels 9616:3, 2+2+p F1, and 9461:4, 2+2+p F2. Used also in Joutseno at least in 1930's and after that (personal communication 7/2011).
You can read more about the Finnish Turning Stitches on page Stitch Grouping by Toini-Inkeri Kaukonen (link).