acrosscenturiesandgenerations:▪Portable diptych sundial.Maker: Hans Tröschel the Elder (German, 1549
acrosscenturiesandgenerations:▪Portable diptych sundial.Maker: Hans Tröschel the Elder (German, 1549–1612)Date: ca. 1598Culture: German, NurembergMedium: Ivory, brass -- source link