Marking Maps - OS200, Part 1 Marking Maps—the Ordnance Survey in Ireland at its Bicentenary (1824-2024)

The #OS200 collaborative events continue! Our exhibition will open at #PRONI on 21st Nov with a series of in-person talks in cooperation with #RGS, #OSNI and #HERoNI. Get your tickets here: shorturl.at/gC3ru and here: shorturl.at/x4uRW