The ones by Stol Yugoslavia had different undersides.
No hints, yet, but the seat pan on the rocker (made by Stol) sure resembles the dining chair that you have. What is curious is that googling “vintage Stol dining chair” brings up the rocker, but not the chair you posted.
But your proto there only resembles a Tapiovaara (below). The most notable feature is the cold-molded seat pan vs. the solid one on your version.
Here’s the rest > http://adoremodern.com/objects/seating/sechs-stühle-fanett-von-asko.html
The write up on > Küchenstühle der 50er mentions Artek, the original manufacturer of Tapiovaara’s chair. It also mentions that Artek has acquired the rights to theTapiovaara collection.
A little more googling came up with another manufacturer of Tapiovaara Fanett chairs: Billund Traevarefabrik
Tapiovaara was obviously an appreciated designer. Here’s a chair “influenced by Ilimari Tapiovaara”, made by Pastoe
BINGO!! Just found this picture here>
http://www.marktplaats.nl/a/huis-en-inrichting/stoelen/m856865343-4-x-retro-vintage-pastoe-spijlenstoel-tapiovaara-stoel-60j.html?c=a2384ef0ece270f44503df9f8598c624&previousPage=lr
identifying “in all probability” (see text) this as Pastoe Spijlenstoel
Either way, here’s a complete Tapiovaara dining set; the table and four chairs for £1,000.00
Here> http://www.ebay.co.uk/itm/Extendable-Dining-Table-by-Ilmari-Tapiovaara-Asko-Finland-Esstisch-1950s-/351175414465?pt=UK_Antiques_AntiqueFurniture_SM&hash=item51c3af92c1
