Art Nouveau ??? Arabia Finland 1917 - 1927 Pair of Lustre Vases

Hi this is my 1st post plenty more to come. I recently picked up this pair of Arabia Finland vases at a car boot sale, I believe they are from 1917 - 1927 but a local auctioneer has told me that they are from the 1970s and later factory reproductions, I can understand this as the colours are so vibrant with little glaze crazing no chips they look new they stand around 35cms tall. I have looked on the Arabia factory website but there is no information on later re-runs on old designs. Can anyone please shed some light on this. Any information welcome thanks