Export tags

I purchased a 1968 Plymouth Barracuda recently and found export tags on the inner fender well. Does anyone have any information on these as far as trying to trace them? One tag simply states
"Plymouth, made in the USA" and the second tag was either from Germany or the Netherlands and reads WB NUMMER 3024.

My buddy has a 68 Formulas S 383 Coupe 4 speed with a Export tag on it also.

You'd probably get more responses by posting this question in the restoration forum. Any pictures?

http://www.performancecargraphics.com/Export_Plate_Tags.htm