1900 Luger

[Johnny Peppers]

Agreed. It is a fact that there are pistols that are serial numbered before the "published" range of test pistols, and pistols that are serial numbered after the published serial number range that meet all the criteria of a test pistol. The takedown lever being numbered on the round was used as early as the early 2000 serial number range. At about this same time the Swiss Cross proof showed up on the barrels. Just as mysteriously the SC proof later disappeared. If you look at enough serial numbers of the early pistols you will see that small changes were made in a given serial number range, and then for no apparent reason changed back to the the previous way they were made or marked. The no proofs and BUG proofs are a good example of this.