Trying to find a matching number
 

I have a 1975 911S Coupe. Production completion date 10/1974. It was an import. I paid to do a Certificate of Authenticity with Porsche here in the states, and they can not confirm the engine number or transmission number with the vin of the vehicle. I am trying to get help with getting a COA. My local Porsche dealership said they can not get the information since it was destined for Belgium and was an import. I have tried reaching out via email to some Porche companies in Germany but I have not had any luck. Does anyone know or have ideas who I can reach out to get this information?

Not a turbo?

I would ask here Porsche 911 Technical Forum - Pelican Parts Forums

Try contacting Porsche North America directly rather than going thru your dealership (1-800-PORSCHE). They recently renamed the COA to a "Porsche Production Specifications" but it's basically the same thing. PCA has a link to the form:
https://www.pca.org/sites/default/files/Request%20Form%203-5-19.pdf