[Ron Wood]

I am only guessing. In addition to size and content, the import marking requirements specifies a precise depth of the marking. It looks to me that in order to meet the depth requirement Simpson laser cut a shallow groove in the magazine cutout and then laser engraved the import marks. This made the import marks meet the required depth below the original surface but the marks themselves ended up quite shallow and therefore less noticeable. I think that may have been tiptoeing at the boundary of meeting specifications. I could be all wet bit that is my guess. Whatever the process, bully for Simpson as it preserved the outward appearance of one of the most significant handgun collections ever to be offered to the collecting community.