I have a 12' Sears 61813 Jon boat with a hull id that ends with M74G. I was under the impression that this is a reference to a manufacture date of 1974 but looking at this site I see it lists the years of manufacture as 1973,75 and 76. Were these made in 74 also and can you tell by the hull id? Thanks for any help.![Confused :confused: :confused:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)