You make it!!, get paper or something.. and like get ink and type and stuff...!!
Compare it against known examples with a good date of manufacture.
Just read a book about it Good Look
Blue Book of Gun Values
Blue Book of Gun Values has sn data in it.
No English book published with this information.
John Hornby has written: 'Turret readers' 'The joyous book of singing games' -- subject(s): Games 'A text book of gas manufacture for students' -- subject(s): Gas manufacture and works
Blue book of gun values
Find a copy of James Spacek's book
Charles Anthony Goessmann has written: 'Notes on the manufacture of sugar in the island of Cuba' -- subject(s): Accessible book, Manufacture and refining, Sugar
Blue Book of Gun Values
Dieter Marschall has a book out that has some sn data in it.
You will need to find a copy of Dieter Marschalls book to get the answer.