Teak Dining Chair ID  

I have a set of 6 of each chair. The set on the left has been in the family since new(recovered)- the set on the right was recently aquired. There are slight differences between them - both are constructed in the same manner. The chairs on the left are marked K.S. Made in Denmark - which let me to believe they are an attributed design to Kai Kristiansen produced by Korup Stolefabrik. The chairs on the right have the fabric under the chairs so I dont know if they say this. Any help with an ID for the chairs on the right would be appreciated. Thank you