Hi i have a unidentified vase with base etch mark it is very pretty and is 20cm high 12cm at its widest,the neck has swirled ribs and a narrow opening,the base has 5 semi circle indentations and is indented so the inner centre comes to a point inside the vase,i have included a hand drawn pic of the etched base mark,the photos fail to bring out the green tinge to the glass,i would appreciate any info on this piece...thank you Lynn