Epact: Scientific Instruments of Medieval and Renaissance Europe

'D O'

The signature 'D O' is engraved on the meridian line of a surveying instrument in the Museum of the History of Science in Oxford. Who the signature belongs to has not yet been established.

For instruments by 'D O', see:

Surveying Instrument, Signed 'D O', German, circa 1600 (Oxford, MHS)

Epact Scientific Instruments of Medieval and Renaissance Europe