British Admiralty Instructional Chart 5132: Port of Cork Upper Harbour Central America & Mexico The color scheme is associated

The color scheme is associated with with the Poland National Coat Of arms which incorporates a white eagle over a red shield

In its fourteenth edition

a key element of the Global Maritime Distress and Safety System (GMDSS)

The color scheme may date back as far as the year 1275

and the extent to which it is rational to do so

British Admiralty Instructional Chart 5132: Port of Cork Upper Harbour Central America & Mexico The color scheme is associatedDescription Instructional Charts are useful for training and examination purposes. They are not maintained for the latest information and should not be used for navigation. Chart Details Panel Name Upper Harbour West Natural Scale 12500 North Limit 51 54'. 41N East Limit 8 18'. 98W South Limit 51 50'. 02N West Limit 8 29'. 65W Panel Name Upper Harbour East Natural Scale 125000 North Limit 51 53'. 49N East Limit 8 10'. 61W South Limit 51 50'. 02N West