Warren Townsend's illustrations present the various switches for the hazard warning lights.
A summary can be downloaded here.
The pull switches and the relays for the hazard warning lights were supplied either by SWF or HELLA. In the pull switch there is a glass base lamp in the socket W1.2W, T5 under the red cap.
The three-pole relay is plugged into the pull switch.
HELLA TBB4 12V 2(4 )x 21W/32cp 4PB 001 095-00
SWF 200.715 Blinkgeber 12V 2(4) x 21W/32cp
Hazard Flasher Switch | Part # 673380 1968-1969
Hazard Flasher Switch | Part # 673380 1970-1971
Hazard Flasher Switch | Part # 673380 1972-1973
