Jim - Lighting Kits were never factory installed on tractors until the 800 Model and then only headlights. Early, early 9N alum doglegs had no punchouts for lights at all. Lights were always only dealer optional accessories up til the 800. Implement (Worklight)Lamps were not introduced until 1949 on the 8N but could be used on the 9N/2N models as well. Up until then, if you wanted a rear worklight, instructions specified to take the RH headlight and winged medallion and move to the RH rear fender and bracket. By most state and federal traffic laws, you were required to keep the LH mounted and used when on roads and highways. The rear TAURUS, later the DUOLAMP, taillight was included in the lighting kit and was required to be mounted on the LH rear fender when used on roads. You could drive on roads and highways with traffic but had to move over to allow cars and trucks to pass and thus the LH taillight would be illuminated for warning. Taillights had a license plate bracket fitted as well. Some states required licensing of tractors but most didn't as farming was then considered and was a big industry. Still should be in my opinion. The taillight had a clear glass window on the top which helped illuminate the license plate when lights were on. As licensing laws dwindled, in 1954/1955 the Hundred Series era, the DUOLAMP taillight then eliminated the clear lens altogether. Lighting kits could be installed by the dealer, at extra costs, but many farmers just bought the kits and installed themselves. Some didn't follow instructions and tried to wire lights their way but were connected wrong and this end up with electrical shorts and non-starting tractors. This is still an issue with guys adding lights but wiring them wrong.
1948 FORD 8N TRACTOR; w/CORRECT LIGHTING KIT SETUP; TIM DALEY OWNER/OPERATOR:
FORD N-TRACTOR REAR TAURUS TAILIGHT, USED 39-49:
FORD TRACTOR TAURUS TAILLIGHT w/CLEAR LICENSE PLATE WINDOW: