Cottage Bold Exterior House Number Plaque Rustic Square. 16 cm. Conker brown characters on Ivory ground. Motif: Prussian blue. This is our Cottage Bold Rustic Square house number plaque. At 12 mm thick this hand-rolled tile is a substantial piece and makes a characterful addition to any exterior. Supplied with screws and raw plugs. Choose up to a maximum of 2 characters. Choose your motif colour; Prussian Blue or green.