advice announcement appearance assistance background carved color colors colour colours communicating communication contrasting designed Designs detailed direction distinctive external first-aid green help informing lettering letters light medical sign white wording words antique antique paper antique poster antique stationary blank paper brown paper goatskin letter letter paper old old paper old parchment pirat old stationary paper parchment Parchment paper poster blank stationary treasure map aerogramme aerogrammes air-mail blue correspond correspondence fine flight flown fly international letter-writing light-blue light-weight mail post postage postal print printed ready send stationery thin write acceptable advising allocated allocation appropriate-behavior appropriate-behaviour approved directing directional indication indicator off-road parking parking-bay public pullover roadside signs symbol symbols