Copper plate: Regent's Quadrant [242]
![Copper plate: Regent's Quadrant [242]](../images/platefull/PS_K239_01.jpg "Copper plate: Regent's Quadrant [242]")
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Photo © The Hunterian, University of Glasgow (50525)
This is a digital image based on the copper plate. A scan of the copper plate was flipped horizontally, converted to greyscale, and colour inverted, with enhanced contrast.