[stevecrea]

I have purchased the above book, and have realized that many of the serial numbers of old Parkers that I encounter are not listed in the book. If a particular gun is not listed in the book, what does this imply, if anything? And, why were so many guns omitted? If I request a research letter, are you able to access any additional information beyond what is in the book?

Thank you for any guidance that you can give me.