Title Block, "North Pacific" Chart 1875

London chart publisher James Imray was known as one of the best makers of "blueback" charts, those charts so large that they required a backing piece of paper to support the two or three sheets of printed chart paper. These were commonly found in the chart collections of Maine ship masters as they provided world wide coverage. This chart is of the North Pacific Ocean published in 1875.

Geographic Location: 
London, England
James Imray and Son