Door Jamb Stickers US Options

[356drb]

Please forgive me if this has been discussed in the past. If so please direct me to the information.

I have found five types of door jamb stickers on US spec. cars. They are:

914-6 -- all are silver and have Porsche as the builder

The 914-4 types always say Volkswagenwerk AG

914-4/1 -- silver or black and do not have gross or axle rates -- used through at least 11/71

914-4/2 -- Says TYPE PASSENGER CAR lower right -- have only seen one dated 5/72 and has the weights and was black

914-4/3 -- Says TYPE PASSENGER CAR at the top, has weights and is silver or black -- have many data points from 8/72 - 12/74

914-4/4 -- Says TYPE PASSENGER CAR lower left, has weights and is silver or black -- used by at least 4/75

The silver and black seem to be used randomly (except on 914-6s). I have one of each dated 12/74. Any clues?

Does anyone know anything in addition and/or can you provide additional dates that can fill the gaps above?

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