Vintage Royal Copley Mallard Duck Planter - Mid Century Modern - Set of 2

Set of 2 beautiful MCM Duck Vases - would be a great planter for succulents or faux flowers - in great condition with no cracks or missing pieces. The insides are a little dirty from having plants in them. Could possibly even use as a candle holder Vintage - mid century - 1970s - 1980s - decor Royal Copley I have seen some information that says these may even be from the 1950s.