Early Triumphs (probably MGs too) had a rubber covered push button on
the solenoid so it could be operated manually.  Helpful when testing
compression , setting valves or timing.  My 65 has it, The 72 doesn't.

On 5-Dec-07, at 5:58 PM, Automatic digest processor wrote:

> I'm not aware that any early Honda's had such a button in the engine
> compartment, but perhaps a few did.=20
> There is one car with that stock though, a Citroen D series.  You
> just =
> push
> on the bottom of a solenoid device that's in the battery cable, not
> on =
> the
> starter, and the starter energizes - stock , from the factory