To make certain that the car does not catch fire when its accessories are activated, I've gone through each and every relay. Dismantled it, cleaned up all contact points, applied protective coating, function tested, and reassembled.
These old relays are tiny works of art. This one I believe is relay #68 - Relay Low beam. And the coil actuate an arm pushing down a clever mechanical design which switches power between two outputs.
56a powers fuse 3 and 4, where 56b powers fuse 5 and 6, which is essentially High/low beam.
Wires are indeed easyer to follow in an interactive dxf-file. Here showing the 56b output to fuse 5, and 6, as well as the outputs from these fuses. 
That being said, there will be quite a lot of work before this schematic is entirely correct, as the paper version from De Tomaso does contain some errors.
I love how the amount of thought that went into the plate the relays attach to.
Relay 105. Defined as "Unknown relay", connected to switch 30, defined as "unknown switch". It's a two pole relay that shorts its own inputs when activated.
I was hoping to find its purpose in the drawings, but it all ends in the steering colum/stalk/ignition switch, along with lots of other "loose ends".
Hard to say whats going on in here.
