(World-Thematic) Time-O-Graph Nautical/Sea Charts Surrounding border notes the flags

Surrounding border notes the flags of many Asian countries

this fine engraving has Ireland oriented with north to the right

just trimmed

along the Stage & Steam Boat Routes

A long and basic map

(World-Thematic) Time-O-Graph Nautical/Sea Charts Surrounding border notes the flagsTime O Graph A century or even fifty years prior, the relative time zones weren't really a focus or a practical need, but with access to new means of travel and communication, there's a new need to understand and manipulate the relationship of time around the world. Condition is good, with minor bending and wear. Image size is approximately 14 x 11 (inches),