A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Andrew Nikitin
Date: 2019 Apr 10, 21:32 -0700
I was in Madrid last week and used an opportunity to visit Naval Museum there. Regretfully, most of it was closed for renovation and only the thematic exhibition (Asia) and one hall of the permanent exhibition were open.
Even so, I consider it was worth the visit. My guess would be that pretty much everything there is of interest to this forum: there were ship models, maps, drawings, instruments and other naval artifacts.
Among the items that caught my attention was, if I may call it, "high precision mariner's astrolabe" (see the picture). Its scale allows angle measurement with 6' precision.