Ersatzteilliste A, B and C all illustrate a single
central back light (Part nr 13690 180). This part incorporated five
lamps of which the central one was a stoplight (which according to
Edition C of the Spare Parts List used an orange celluloid filter)
while the remaining were tail lamps (using red lateral celluloid filters)
and number plate lights (using transparent down-casting celluloids).
A car with this back light is illustrated in the early Owner's Handbook
(Betriebsanleitung 6236- 1937?) for the model and a similarly fitted
one in a contemporary Mercedes photo [1] - see below- that clearly
shows the differently coloured celluloids.. |
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The
"three-eyed" backlight as illustrated in Edition A of
the 170V Spare Parts List. The part used for this 1936 photo had
only red cellulloids and the three "eyes" had the same
width. In the later version far above, the orange central "eye"
is smaller. See this early version in a 1936 car here.
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The cars exported to
Portugal in 1937/39 were not fitted with this light but rather with
a left side plate holder and top light, as was usual in American
cars of the 1920s and early to mid 1930s (see images below).
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A contemporary factory
photo of an export model illustrates a round back light (see
picture below left). It seems likely that both the round light
and the oval light were used for export models in 1937/39. Cars
are known with two such lights (original?).
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This round
lamp, used by Mercedes in a different model at about
the same time, seems the same as seen in the factory
photo at left of an export 170V. |
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Below, a Swedish car
with a double oval backlight. The second (right side) light may
be factory original or not.
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