Parker Gun Identification and Serialization

[Pa SxS]

Bill is correct. The stock books were used to create a database which is what the ID and Serialization book was compiled from. We don't have all the stock books, many are missing. Before the ID and Serialization book database was completed, the authors got access to the order books. The order books were searched for all D grades and above that were in the missing stock books and added to the database, therefore those D's and above were included in the ID and Serialization Book.