Description
1b vertical string-gnomon dial (with apparently incorrect graduations: VI lines not perpendicular to XII) and recess for (missing plumb bob); 2a horizontal string-gnomon dial and compass with manuscript card.
Acknowledgement: © History of Science Museum, University of Oxford, inv.71992
1b vertical string-gnomon dial (with apparently incorrect graduations: VI lines not perpendicular to XII) and recess for (missing plumb bob); 2a horizontal string-gnomon dial and compass with manuscript card.