I have a miniature of Ne Plus Ultra. Bottled by John Dewar & Sons ,Perth. It is a square green bottle but the label differs from yours. Firstly it has the Royal Appointment Seal. It is marked Scoth Whisky De Luxe. On the left hand side it has printed in French 12 Ans d'Age and on the right 12 year old. It is 45ml and 40% alc/vol.I bought it with a lot of other old bottles of whisky for my collection but I don't know what it is worth