Hello I found a Vase yesterday in a pile of rubbish and wondered if someone could give me any information on this. The markings on the base are Kosa 41715 V Lindstrand. I have googled on the internet and found this is one of the "seaweed" series. I have absolutely no knowledge about Glass and was going to throw this into the rubbish bin until I noticed the weight and etching on the bottom. The vase is in perfect condition apart from a couple of small scratches on the base. I am not a Glass Collector but this piece has got my interest I would love to know more about it.