Bing & Grondahl Large Unique vase decorated all in blue with sail boat

Bing & Grondahl, large Unique vase decorated all in blue with sail boat - the vase is decorated all the way around. Uniquely decorated by artist Ruth Hansen. The factory mark tells, that this was produced between 1970 and 1983. Decoration number 51/82-5440. Factory first. Height 30.0 cm. There is one minor chip at the top edge, please see picture, otherwise perfect condition with no chips, cracks or repairs.