One new EPC brand ignition tune up kit (made in Japan), part number EP718K.  This includes the cap, rotor, points, condensers and spark plugs.  This fits:

Datsun 510 1600cc with dual ignition 1969 - 1973
Datsun 521 with dual ignition 1970 - 1973
Datsun 610 1800cc 1973