Vietnam, a pair of original hand drawn design essays for the face and reverse of a 100 Dong note, most likely produced for Bradbury Wilkinson, possibly by Derek Friday, the designs on heavy paper in pencil, ink and watercolour, the main image hand drawn directly on to the paper with other hand drawn border elements applied as layers, measuring 7.3cms x 14.6cms, the designs are incredibly detailed with great colour, there are areas of significant discolouration/brown staining in various places on both designs, minor damage with discolouration along some edges, a number of other minor spots of dirt here and there, the back of both designs have adhesive residue and evidence of previous mounting to a backing board