the Antikythera Mechanism, which was apparently an ancient orrery or simulator of motions of the heavenly bodies. The machine, which was constructed circa 80 BC, could represent the motions of most heavenly bodies known in its time using a clockwork consisting of 37 gears.
the two maps are reversed , are to different scale and have different centres
but mesh at Leo Minor on the Wessex Starmap
which is Leo on the Glastonbury Zodiac
more about the Glastonbury Zodiac HERE