All 356, 911 (65-89) Battery breaker switch, to be mounted between the negative terminal of the battery and the negative cable. the connection get broken by turning the green knob a few turns but can also be completely removed.
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battery
911 (65-68) Protective tube for the starter cable 90161103121
wiring harness
NR. 60
luggage compartment
fuse holder
switch
instruments