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Portolan scale
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Portolan scale

Detail of the distance scale (bar, lines and dots) on an anonymous Genoese portolan chart, c.1325-50. Scale of portolan: ca. 1:5,500,000.

Date
1325
Mapmaker / publisher
Mediterranean_chart_fourteenth_century2.jpg: anonymous, probably Genoan *derivative work: Walrasiad ( talk )
Archive
Wikimedia Commons
Type
chart
Original size
977 × 377 pixels

Public domain

Reason: its maker died long enough ago that the copyright has expired.

This status rests on the map's publication history, as researched by Wikimedia Commons. Check it before commercial use.

Read from: Commons licence category: PD Old; no CC BY, CC BY-SA, GFDL or deletion tag on the file page.

Credit line

"Portolan scale" (1325). Mediterranean_chart_fourteenth_century2.jpg: anonymous, probably Genoan *derivative work: Walrasiad ( talk ), via Wikimedia Commons. Public domain. https://commons.wikimedia.org/wiki/File:Portolan_scale.jpg

What public domain means here

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