The Longitude Poster Wrap by Blue Dog Posters is a vintage diagram that explains various astronomical methods for determining longitude. This possible original John Emslie engraving features a celestial map with the Sun, Earth, moons, and several arcs illustrating different lines. Diagram illustrating the Earth and Moon's rotation relative to the Sun's light, inspired by a John Emslie engraving. The Earth is depicted in yellow on the right, with a conical yellow beam of sunlight extending to the left where Earth and Moon diagrams are placed, highlighted on Blue Dog Posters' "The Longitude Poster Wrap.
The Longitude Poster Wrap by Blue Dog Posters is a vintage diagram that explains various astronomical methods for determining longitude. This possible original John Emslie engraving features a celestial map with the Sun, Earth, moons, and several arcs illustrating different lines.
Diagram illustrating the Earth and Moon's rotation relative to the Sun's light, inspired by a John Emslie engraving. The Earth is depicted in yellow on the right, with a conical yellow beam of sunlight extending to the left where Earth and Moon diagrams are placed, highlighted on Blue Dog Posters' "The Longitude Poster Wrap.

The Longitude Poster Wrap

BD 33-0067 / Blue Dog Posters
$15.00
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The Longitude Poster Wrap by Blue Dog Posters is a vintage diagram that explains various astronomical methods for determining longitude. This possible original John Emslie engraving features a celestial map with the Sun, Earth, moons, and several arcs illustrating different lines.

This print measures approximately

50 x 70cm

Adapted from a coloured engraving by John Emslie (1851). Wellcome Collection. 490mm x 700mm (19 1/4" x 27 9/16"), 90gsm uncoated cream Italian paper. Use as gift wrap, decorative paper or a poster. Printed with vegetable-based inks on a carbon neutral press using responsibly sourced, acid free paper. 

The Longitude Poster Wrap by Blue Dog Posters is a vintage diagram that explains various astronomical methods for determining longitude. This possible original John Emslie engraving features a celestial map with the Sun, Earth, moons, and several arcs illustrating different lines.

This print measures approximately

50 x 70cm

Adapted from a coloured engraving by John Emslie (1851). Wellcome Collection. 490mm x 700mm (19 1/4" x 27 9/16"), 90gsm uncoated cream Italian paper. Use as gift wrap, decorative paper or a poster. Printed with vegetable-based inks on a carbon neutral press using responsibly sourced, acid free paper. 

Adapted from a coloured engraving by John Emslie (1851). Wellcome Collection. 490mm x 700mm (19 1/4" x 27 9/16"), 90gsm uncoated cream Italian paper. Use as gift wrap, decorative paper or a poster. Printed with vegetable-based inks on a carbon neutral press using responsibly sourced, acid free paper. 

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