Horn/Dip Switch for Inter.

A good question, Paul, and one I have asked myself in recent days for my Domi 99 (1958). I know it is not an Inter (or a 57), but they might have had the same switchgear and I am sure someone will put us right with original fitments if not. The technical literature I have is silent on the matter of the horn/dip switch type although it seems to have lots of info on every other topic.

The current item on the Domi looks like this: https://www.vehiclewiringproducts.co.uk/c-1-home/c-82-motorcycle-parts/c-153-motorcycle-switches/c-189-handlebar-switches/p-309-replica-lucas-horn-dip-switch.

Let us let the experts put us right...or I might just get on and replace it with this type anyway (the dip switch function has never worked while the bike has been in my ownership).

Lucas spares list no. CE 828B for 1957 Nortons lists the dip switch (Model 25SA) as part no: 31563A. A chrome plated combined horn and dip switch.

A picture clarifies the description.

The early 50’s handlebars came with a shaped plate fixed to them with tapped holes to receive that switch.  (You can get them to clamp on also). That picture looks like a resto machine so may not be authentic.   cheers 

Jon