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Hi Fred,

I guess your light units have Carello # 03.490.700 on the glass and Carello # 03.493.800 on the back of the reflector.
A Carello light unit, having different numbers on the glass versus on the reflector, is very normal. It's all about the assembling in the factory. One type of glass was used on more types of reflectors / fixation method, so the glass could serve more than one car brand. ( read also below)
These lights, having a second reflector inside, were, and are now certainly, quite expensive light units.
The Carello light units with the 03.490.700 glass were used on many cars, amongst others on Ferrari like mentioned by someone else here before. They all did have the double reflector system.

You can find relatively easy some of the units with the Carello # 03.490.700 on the glass on Ebay in Europe, but finding them with also the correct Alfa fixation hooks at the rear like you showed in post # 12, isn't that easy. The only correct ones for your car have Carello # 03.493.800 on the back ( reflector side), just like the one you showed here yourself. Focuse on that number !

Be sure to check before, that the light units that you want to buy have the same fixation hooks as yours. ... if they don't ... better don't buy !
As said before, there are multiple of these light units having the Carello 03.490.700 number on the glass, they all have the double reflector system, ... but unfortunately the fixation hooks at the rear differ !

According to originality, I can't remember of having seen this type of double reflector light units in the Alfa catalogs ( ... neither the Carello unit, nor the Marchal equivalent) but they do are listed in the 1971 Carello catalog for the Alfa 105 cars indeed. They were an Iodine bulb upgrade for the standard Carello 07.480.700.
Btw, both Carello and Marchal strongly advised their clients to use relais for this type of light units. Do you have relais for that purpose on your car ?

If you can't find that # 03.493.800 , I can have a look whether I still have a 'pretty good' set of them. Only if you want of course.


Rgds,

Thierry
 

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Hi all,

Here some pictures of the Carello and the Marchal side by side.
The lenses of these Carello light units are deeper and more convex.
The Marchal Amplilux units have the 3 bridges at the rear and need a ring for mounting on the bucket, the same way Fran's Carellos in post # 23 do.
I can't remember ever having seen this type of Marchal Amplilux light units with the same mounts at the back as do show the Alfa 105 series Carellos from post # 12 .

Any other thoughts ?

Rgds,

Thierry

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