Device for indicating the direction of the Black Stone at Mecca

摘要

The device consists of a support 1 on which the symbol 7 of a place is marked. The support also carries freely rotating non-magnetic equipment 4 firmly attached to a magnetic element 5. The equipment 4 has a reference mark 6 pointing towards a representation of the Black Stone on the support and making with the north (indicated by the magnetic element 5) the angle that the north makes with the direction of the Black Stone at this place. Prayer mat. IMAGE