I know everyone is tired of these question, but!
I have just acquired a Century Graphic serial number 535474. What year was it manufactured.

Thanks in advance.

the last entry in my book is '64 at 533883, So I'm guessin' '66='67 Look for an alpha numeric date code like A7XXX on the underside of the cross section of the focus rails, then check back to the home page of this site and find where they discuss the dates. This will be much more accurate than the serial numbers.

G.