• As you could appreciate the greater the population that we can include in our research the better results will be moving forward for the hobby. We have been studying bent corners, punch through and body shop impact stamps that do not go through the tag. There are consistent patterns of impact stamps at a given final assembly plant during a production year. A very high percentage of tags between 1968 and 1976 that most often have a two digit impact stamp in the upper 1/3 of the tag. Most of these stamps are in the upper right hand corner of the tag so they do not interfere with the vehicle codes. One of the most consistent stamp patterns is the St. Louis plant. We have consistently found a body shop impact stamp (not through the tag) and a unique character (punched through the tag). Our findings have been included and will continue to be included in the reference manuals that we publish on our web site mmcdetroit.com. Attached are a few images that may enlighten you about original factory produced trim tags. We would like to extend a special thank you to Bryon Fettig of the Dakota Connection that continues to share trim tag with us for our continued research.

Decoding Service:

• We can provide decoding services for trim tags, broadcast sheets or IBM production cards. We have been providing this service free of charge for anyone that commissions us to inspection and/or validations their vehicle. We have information that most do not to accurately and timely provide you with this service.