On my 74 914, the number stamped in the right corner of the rear trunk is 3839577. As I understand it, this decodes as follows:
38 = built in the 38th week of the model year production
3 = 3rd day of that week (Wednesday)
9 = factory location
577 = 577th car off the line in the run
On the metal plate inside the front door, the number is 3739577, which would be all the same info except the build week. Seems like too much of a coincidence that the two nembers could be all the same, but came from different cars EXACTLY one week apart. This car was off the road due to collision damage (I suppose) from 1978 to 2007, but the damage was never repaired until I did it in 2007, and I didn't buy new trunk or data plates.
Any ideas on this?