object
Butterfield dial
A named octagonal portable horizontal sundial with bird-gnomon and city latitude tables of later French practice. Not a diptych-dial, not a ring-dial, and not a bare plate dump.
Also known as Butterfield sundial
object
A named octagonal portable horizontal sundial with bird-gnomon and city latitude tables of later French practice. Not a diptych-dial, not a ring-dial, and not a bare plate dump.
Also known as Butterfield sundial