I recently purchased this vase. It stands 5 1/4''H x 2 1/2''W x 1 3/8''D. It is signed Kosta Boda Atelje B. Vallien 305840139. I haven't been able to find any information on it, and the model number is not the typical one usually found on K.B. glass. Also, I've never heard of the Atelje line. Can anyone provide information on the piece?